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Cisco Systems DSC9148D8G48PK9 manual

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  • Page 1

    Americas Headquarters Cisco Systems, In c. 170 West Tasman Drive San Jose, CA 951 34-1706 USA http://www.ci sco.com Tel: 408 526-4000 800 553-NETS (638 7) Fax: 408 527-0883 Cisco MDS 90 0 0 F amil y NX-OS Interfaces Conf iguration Guide Cisco MDS NX-OS R elease 6.2(1) April 20 13 Text Part Number: OL -29284-01[...]

  • Page 2

    THE SPECIFICATION S AND INFORMATION RE GARDING THE PR ODUCTS IN THIS MA NUAL ARE SUBJECT T O CHANGE WITHOUT NOTICE. ALL STATEMENTS , INFORMATION, AND RECOMMENDATI ONS IN THI S MANUAL ARE BE LIEVED TO BE A CCURATE BUT ARE PRESENTED WI THOUT WARRANTY OF ANY KIND, EX PRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSI BILITY FOR THEIR APPLICATION OF ANY P[...]

  • Page 3

    iii Cisco MDS 9000 Family NX-OS In terfaces Configurat ion Guide OL-29284-01, Release 6.x CONTENTS New and Changed Information xiii Preface xv Audience xv Organization xv Document Conventions xvi Related Documentation xvii Release Notes xvii Regulatory Compliance and Safety Information xvii Compatibility Information xvii Hardware Installation xvii [...]

  • Page 4

    Contents iv Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x TE Port 2-4 TF Port 2-4 TNP Port 2-5 SD Port 2-5 ST Port 2-5 Fx Port 2-5 B Port 2-5 Auto Mode 2-5 Interface States 2-6 Administrative States 2-6 Operational States 2-6 Reason Codes 2-6 Graceful Shutdown 2-9 Port Administrative Speeds 2-10 Autosensing 2-1[...]

  • Page 5

    Contents v Cisco MDS 9000 Family NX-OS In terfaces Configurat ion Guide OL-29284-01, Release 6.x Configuring Interface Modes 2-22 Configuring System Default Port Mode F 2-23 Configuring ISL between Two Switches 2-24 Configuring 10-Gbps FC Mode 2-24 Configuring Port Administrative Speeds 2-25 Configuring Port Speed Group 2-26 Configuring the Interfa[...]

  • Page 6

    Contents vi Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Displaying Management Interface Config uration 2-55 Displaying VSAN Interface Information 2-55 CHAPTER 3 Configuring Fibre Channel Interfaces 3-1 Information About Fibr e Channel Interfaces 3-1 Generations of Modules and Switches 3-1 Port Groups 3-3 Port[...]

  • Page 7

    Contents vii Cisco MDS 9000 Family NX-OS In terfaces Configurat ion Guide OL-29284-01, Release 6.x Verifying Fibre Channel Interfaces Configuration 3-43 Displaying Interface Capabilities 3-44 Displaying SFP Diagnostic Information 3-45 Configuration Examples fo r Fibre Channel Interfaces 3-45 Configuration Example for 48-Port 8-Gbps Module Interface[...]

  • Page 8

    Contents viii Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Configuring Performanc e Buffers 4-22 Configuring Extended BB_cre dits 4-23 Enabling Buffer-to-Bu ffer Credit Recovery 4-24 Enabling the Buffe r-to-Buffer State Change Nu mber 4-24 Configuring Receive Data Field Size 4-24 Verifying BB_Cr edit Configur [...]

  • Page 9

    Contents ix Cisco MDS 9000 Family NX-OS In terfaces Configurat ion Guide OL-29284-01, Release 6.x Interface Addition to a PortChannel 6-8 Forcing an Interface Addition 6-9 Interface Deletion from a PortChannel 6-9 PortChannel Protocols 6-9 Channel Group Crea tion 6-10 Autocreation 6-11 Manually Configured Channel Groups 6-12 Prerequisites for PortC[...]

  • Page 10

    Contents x Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Traffic Map 7-7 Disruptive 7-8 Multiple VSAN Support 7- 8 Guidelines and Limitations 7-8 NPV Guidelines and Requirements 7-8 NPV Traffic Management Guide lines 7-9 DPVM Configuration Guidelines 7-9 NPV and Port Security Configuration Guidelines 7-10 Confi[...]

  • Page 11

    Contents xi Cisco MDS 9000 Family NX-OS In terfaces Configurat ion Guide OL-29284-01, Release 6.x Enabling Port Tracking 9-3 Information Abou t Configuring Linke d Ports 9-3 Binding a Tracked Port Operationally 9-4 Information About Tracking Multiple Ports 9-4 Tracking Multiple Ports 9-5 Information About Monito ring Ports in a VSAN 9-5 Monitoring [...]

  • Page 12

    Contents xii Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x[...]

  • Page 13

    -xiii Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01 New and Changed Information As of Cisco MDS NX-OS Release 4.2(1), softw are configurat ion information is a vailable in ne w feature-specif ic configurat ion guides for the follo wing information: • System mana gement • Interfaces • Fab ri c • Quality of service ?[...]

  • Page 14

    -xiv Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01 FlexAt tach Disable Fle xAttach Added informat ion about disablin g FlexAtt ach. 5.0(1a) Chapte r 8, “Config uring FlexAttach V irtual pWWN” Port Group Monitoring Enhancemen ts Check Ov ersubscription > Monitor Added informat ion about monitoring a se lected port gr [...]

  • Page 15

    -xv Cisco MDS 9000 Family I/O Accelerator Configu ration Guide OL-29284-01 Preface This preface describes the audience, organization, and con ventions of the Cisco MDS 900 0 F amily NX-OS Interfaces Conf iguration Guide . It also provides informati on on how to o btain related documentation. Audience This guide is for e xperienced network ad minist[...]

  • Page 16

    -xvi Cisco MDS 9000 Family I/O Acce lerator Configuration Guide OL-29284-01 Document Conventions Command descriptions use these co n ventions: Screen examples use these con ventions: This document uses the f ollo wing con ventions: Note Means reader take note . Notes contain helpful sugg estions or refe rences to mat erial not cov e red in the manu[...]

  • Page 17

    -xvii Cisco MDS 9000 Family I/O Accelerator Configu ration Guide OL-29284-01 Related Documentation The documentation set for t he Cisco MDS 9000 F amily includes the foll owing documents. T o find a document online, use the Cisco MD S NX-OS Documentation Locator at: http://www .cisco.com/en/US/docs/sto rage/san_switches/mds9000/roadmaps/do clocater[...]

  • Page 18

    -xviii Cisco MDS 9000 Family I/O Acce lerator Configuration Guide OL-29284-01 • Cisco MDS 9000 F amily NX-OS Quality of Service Con figu ration Guide • Cisco MDS 9000 F amily NX-OS Security Conf iguration Guide • Cisco MDS 9000 F amily NX-OS IP Services Conf iguration Guide • Cisco MDS 9000 F amily NX-OS Intelligent Stora ge Services Conf i[...]

  • Page 19

    CH A P T E R 1-1 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x 1 Interfaces Overview • T runks and PortChannels, page 1-1 • Fibre Channel Port Rate Limiting , page 1-1 • Extended Credits, page 1-2 • N Port V irtualization , page 1-2 • FlexAttach, page 1-2 Trunks and PortChannels T runking, also known[...]

  • Page 20

    1-2 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 1 Inte rfaces Overview Extended Credits Extended Credits Full line-rate Fibre Channel ports pr ovide at least 25 5 buf fer credits standard. Adding credits lengthens distances for Fibre Channel SAN e xtension. Using exte nded credits, up to 4095 b uff er[...]

  • Page 21

    1-3 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 1 Interfaces Overview FlexAttach[...]

  • Page 22

    1-4 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 1 Inte rfaces Overview FlexAttach[...]

  • Page 23

    CH A P T E R 2-1 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x 2 Configuring Interfaces • Information About Interf aces, page 2-1 • Prerequisites for Interfaces, page 2-18 • Guidelines and Limit ations, page 2-1 8 • Default Setti ngs, page 2-20 • Config uring Interfaces, page 2-20 • V erifying In t[...]

  • Page 24

    2-2 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Information About Interfaces • Port Group Moni tor , page 2-16 • Local Switching, page 2-16 • Slo w Drain De vice Detection and Cong estion A voidance, page 2-17 • Management Interf aces, page 2-17 • VSAN Interfaces, p[...]

  • Page 25

    2-3 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Information Ab out Interfaces • The operational status represents the current status of a speci fied attrib ute like the interface sp eed. This status cannot be chang ed and is read-only . So me v alues may not be val id when[...]

  • Page 26

    2-4 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Information About Interfaces TL Port In translati ve loop port (TL port) mode, an in terface functions as a t ranslati ve loop po rt. It may be connected to one or more pr iv ate loop de vices (NL ports). TL ports are specif ic [...]

  • Page 27

    2-5 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Information Ab out Interfaces TNP Port In trunking NP port ( TNP port) mode, an interfac e functions as a t runking e xpansion port. It may be connected to a trunk e d F port (TF port ) to create a link to a core NPIV switch fr[...]

  • Page 28

    2-6 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Information About Interfaces port or NL port mode. If the interf ace is attached to a third-party switch, it operat es in E port mode. If the interface is attached to another switch in the Cisco MDS 9000 F amily , it may become [...]

  • Page 29

    2-7 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Information Ab out Interfaces Note Only some of the reason codes are listed in Ta b l e 2-4 . If the administrativ e state is up and the operational state is do wn, the reason code dif fers based on the nonoperational reason co[...]

  • Page 30

    2-8 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Information About Interfaces Ta b l e 2-4 Reason Codes fo r Nonoperati onal States Reason Code (long version) Description Applicable Modes Link fail ure or not connected The physical laye r link is not op erational. All SFP not [...]

  • Page 31

    2-9 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Information Ab out Interfaces Graceful Shutdown Interfaces on a p ort are shut do wn by default (unless yo u modified t he initial conf iguration). The Cisco NX-OS software impli citly performs a graceful shutdo wn in response [...]

  • Page 32

    2-10 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Information About Interfaces A graceful shut do wn is not po ssible in the following situatio ns: • If you physical ly remov e the port from the swi tch. • If in-order deli very (IOD) is enabl ed (for information about IOD,[...]

  • Page 33

    2-11 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Information Ab out Interfaces Y ou can set the frame format to EISL for al l frames tr ansmitted by the interface in SD po rt mode. If you sent the frame encapsulation to EISL, all outgo ing frames are transmitted in the EISL [...]

  • Page 34

    2-12 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Information About Interfaces The bit errors can occur fo r the follo wing reasons: • Faulty or bad cable. • Faulty or b ad GBIC or SFP . • GBIC or SFP is specifi ed to operate at 1 Gbps but is used at 2 Gbp s. • GBIC or[...]

  • Page 35

    2-13 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Information Ab out Interfaces TL Ports Pri vat e loop de vices refer to leg acy de vices that reside on arbitrated loops. These de vices are not a ware of a switch fabric becau se they only commu nicate with de vices on the sa[...]

  • Page 36

    2-14 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Information About Interfaces Figure 2-3 sho w s e xamples of TL port translation support. Figur e 2-3 TL P ort T r anslation Support Examples TL Port ALPA Caches Although TL ports cannot be automatically configured , you can ma[...]

  • Page 37

    2-15 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Information Ab out Interfaces The port guard feature giv e s the S AN adminis trator the ability to pr ev ent this issue from occurring in en vironments that are vulnerable to these pro blems. The port can be conf igured to st[...]

  • Page 38

    2-16 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Information About Interfaces Port Monitor Port Guard Port monitor port guard i s a feature that disables or shuts do wn a port when an ev ent occurs. Depending on the conf iguration, when an e vent occurs t h e port is either e[...]

  • Page 39

    2-17 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Information Ab out Interfaces Slow Drain Device Detection and Congestion Avoidance All data traf fic between end de vices in a SAN fabric is carried b y Fibre Channel Class 3. In some cases, the traff ic is carried by Class 2 [...]

  • Page 40

    2-18 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Prerequisites for Interfaces VSAN Interfaces VSANs apply to Fibre Channel f abrics and enable you t o configur e multiple isolated SAN topo logies within the sa me physical in frastructure. Y ou can create an IP inte rface on t[...]

  • Page 41

    2-19 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Guidelines and Limitations • The auto mode is not allo wed in a 32-port switching module or the host-o ptimized ports in the Cisco 9100 Series (16 host- optimized ports in t he Cisco MDS 9120 switch and 32 host-optimized po [...]

  • Page 42

    2-20 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Default Settings Default Settings Ta b l e 2-7 lists the default settings for interface parameters. Configuring Interfaces This section includes the following topics: • Config uring Fibre Channel Interf aces, page 2-21 • Se[...]

  • Page 43

    2-21 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Configuring Interfaces • Config uring Management Interfaces, page 2-37 • Creating VSAN Interfaces, page 2-38 • Config uring Slo w Drain De vice Detection and Congestion A voidance, page 2-38 For more inf ormation on conf[...]

  • Page 44

    2-22 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Configuring Interfac es Setting the Interface Administrative State Detailed Steps T o gracefully shut down an interface, follo w these steps: T o enable traf fic flo w , follow th ese steps: Configuring Interface Modes Detailed[...]

  • Page 45

    2-23 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Configuring Interfaces Configuring System Default Port Mode F The system default switchport mode F command sets the administrat iv e mode of all Fibre Channel ports to mode F , while av oiding traf fic disru ption caused by th[...]

  • Page 46

    2-24 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Configuring Interfac es Configuring ISL between Two Switches Note Ensure the FC cable is connected between the ports and do a no-shut on each port. E-port mode is used when th e port functions as one end of an Inter -Switch Lin[...]

  • Page 47

    2-25 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Configuring Interfaces Detailed Steps T o configure the interface mode, follo w these steps: Configuring Port Administrative Speeds Restrictions • Changing the port administrati ve speed is a d isrupti ve operation. Detailed[...]

  • Page 48

    2-26 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Configuring Interfac es Configuring Port Speed Group Detailed Steps T o configure th e port speed group o f the interface, follow these steps: Configuring the Interface Description The interface description can be any alphanume[...]

  • Page 49

    2-27 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Configuring Interfaces Specifying a Port Owner Using the port o wner feature, you can specify the ow ner of a port and the purpose for which a po rt is used so that the other ad ministrators are informed. Note The port guard a[...]

  • Page 50

    2-28 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Configuring Interfac es Troubleshooting Tips • The flashing green light tu rns on automatically when an e xternal loopback is detected that causes the interfaces to be isolat ed. The flashing gree n light ov errides the beaco[...]

  • Page 51

    2-29 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Configuring Interfaces Detailed Steps T o configure swit ch port attrib utes, follo w these steps: Configuring TL Ports Pri vat e loops require setting the i nterface mode to TL. Use the switchport mode command to config ure a[...]

  • Page 52

    2-30 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Configuring Interfac es Configuring Port Guard Detailed Steps T o enable or disable the port guard for a port, fo llow t hese steps: Examples This exampl e shows ho w to configu re port guard to bring a p ort to do wn state if [...]

  • Page 53

    2-31 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Configuring Interfaces Switch# show port internal info interface fc8/3 fc8/3 is down (Error disabled - port down due to trustsec violation) Hardware is Fibre Channel, SFP is short wave laser w/o OFC (SN) Port WWN is 21:c3:00:0[...]

  • Page 54

    2-32 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Configuring Interfac es Configuring a Port Monitor Policy Detailed Steps T o configure a port mon itor polic y , follo w these steps: Command Purpose Step 1 switch# config t Enters configuration m ode. Step 2 switch(config)# po[...]

  • Page 55

    2-33 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Configuring Interfaces Step 10 switch(config-port-monitor)# counter link-loss poll-interval seconds delta rising-threshold percentage1 event event-id falling-threshold 2 percentage2 event event-id Specifies the d elta link fai[...]

  • Page 56

    2-34 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Configuring Interfac es Activating a Port Monitor Policy Detailed Steps T o activ ate a port monitor policy , follow th ese steps: Configuring a Port Monitor Port Guard Detailed Steps T o configure a port mon itor polic y , fol[...]

  • Page 57

    2-35 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Configuring Interfaces • Re verting to the Def ault Policy for a Specif ic Counter , page 2-36 • T urning Off the Monitoring of Specif ic Counter , page 2-36 • Acti v ating a Port Group Monitor Pol icy , page 2-37 Enabli[...]

  • Page 58

    2-36 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Configuring Interfac es Reverting to the Default Policy for a Specific Counter When the no counter command is used in the conf ig-port-group-monitor mode, the specif ied counter polling v alues will rev e rt to the d efault v a[...]

  • Page 59

    2-37 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Configuring Interfaces Port type : All Port Groups ------------------------------------------------------------------------------------------ Counter Threshold Interval %ge Rising Threshold %ge Falling Threshold ------- ------[...]

  • Page 60

    2-38 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Configuring Interfac es T o configure the mgmt0 Ethernet interface to connect over IPv6, follo w these steps: Creating VSAN Interfaces Detailed Steps T o create a V SAN interface, follo w these steps: Configuring Slow Drain Dev[...]

  • Page 61

    2-39 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Configuring Interfaces Configuring Congestion Frame Timeout Value The default cong estion frame timeout v alue is 500 milliseconds. W e recommend that you retain the default conf iguration for the ISLs and conf igure a v a lue[...]

  • Page 62

    2-40 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Configuring Interfac es Note The no-credit timeout v alue and stuck frame timeout valu e are interlinked. Th e no-credit timeou t val ue must alw ays be greater than the stuck frame ti meout v alue. T o configure the n o-credit[...]

  • Page 63

    2-41 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Verifying Interfaces Configuration LR RX Delta 60 5 4 1 4 Not enabled LR TX Delta 60 5 4 1 4 Not enabled Timeout Discards Delta 60 200 4 10 4 Not enabled Credit Loss Reco Delta 60 1 4 0 4 Not enabled TX Credit Not Available De[...]

  • Page 64

    2-42 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Verifying Interfaces Configuration • Displaying Port Mo nitor Status and Polici es, page 2-51 • Displaying Port Group Mon itor Status and Policies, page 2-53 • Displaying Management Interface Configuration, page 2-55 • [...]

  • Page 65

    2-43 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Verifying Interfaces Configuration 0 CRC, 0 unknown class 0 too long, 0 too short 4638491 frames output, 7264731728 bytes 0 discards, 0 errors 3 input OLS, 9 LRR, 1 NOS, 0 loop inits 9 output OLS, 7 LRR, 1 NOS, 0 loop inits 16[...]

  • Page 66

    2-44 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Verifying Interfaces Configuration Receive B2B Credit is 12 Receive data field Size is 2112 Beacon is turned off 5 minutes input rate 0 bits/sec, 0 bytes/sec, 0 frames/sec 5 minutes output rate 0 bits/sec, 0 bytes/sec, 0 frames[...]

  • Page 67

    2-45 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Verifying Interfaces Configuration 2214834 frames input, 98673588 bytes 0 discards, 0 errors 0 CRC, 0 unknown class 0 too long, 0 too short 2262415 frames output, 343158368 bytes 0 discards, 0 errors 1 input OLS, 1 LRR, 1 NOS,[...]

  • Page 68

    2-46 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Verifying Interfaces Configuration ... GigabitEthernet4/6 down 10.1.1.2/8 auto 3000 GigabitEthernet4/7 down 10.1.1.27/24 auto 1500 GigabitEthernet4/8 down -- auto 1500 -----------------------------------------------------------[...]

  • Page 69

    2-47 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Verifying Interfaces Configuration 0 frames output, 0 bytes 0 class-2 frames, 0 bytes 0 class-3 frames, 0 bytes 0 class-f frames, 0 bytes 0 discards 0 input OLS, 0 LRR, 0 NOS, 0 loop inits 0 output OLS, 0 LRR, 0 NOS, 0 loop in[...]

  • Page 70

    2-48 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Verifying Interfaces Configuration Mbits/s Frames Mbits/s Frames ------------------------------------------------------------------------------- fc3/1 0 3871 0 3874 fc3/2 0 3902 0 4232 fc3/3 0 3901 0 4138 fc3/4 0 3895 0 3894 fc[...]

  • Page 71

    2-49 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Verifying Interfaces Configuration channel-group 11 force no shutdown Example 2-12 displays the running con figur ation informat ion for a specif ied interface. The interface configuration com mands are groupe d together . Exa[...]

  • Page 72

    2-50 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Verifying Interfaces Configuration Example 2-15 Displa ys Interf ace Infor mation in a Brief F ormat Af ter the Syst em Def ault Switc hport Mode F Co mmand is Executed switch# show interface brief -----------------------------[...]

  • Page 73

    2-51 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Verifying Interfaces Configuration In addition to these proxied de vices, other virtual de vices (local or remote domain control ler addresses) are also allocated ALP As on the loop. A switch re serves the ALP A for its o wn c[...]

  • Page 74

    2-52 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Verifying Interfaces Configuration switch# show port-monitor status Port Monitor : Enabled Active Policies : sample Last 10 logs : switch# show port-monitor ----------------------------------------------------------------------[...]

  • Page 75

    2-53 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Verifying Interfaces Configuration Oper status : Active Port type : All Access Ports ------------------------------------------------------------------------------------------ Counter Threshold Interval Rising Threshold event [...]

  • Page 76

    2-54 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Verifying Interfaces Configuration switch# show port-group-monitor ------------------------------------------------------------------------------------------ Port Group Monitor : enabled ----------------------------------------[...]

  • Page 77

    2-55 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Configuring Interfac es Verifying Interfaces Configuration Displaying Management Interface Configuration T o display the management interface con figuration , use the show interface mgmt 0 command. switch# show interface mgmt 0 mgmt0 is up Hardware i[...]

  • Page 78

    2-56 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 2 Config uring Interfaces Verifying Interfaces Configuration[...]

  • Page 79

    CH A P T E R 3-1 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x 3 Configuring Fibre Channel Interfaces • Information Ab out Fibre Channel Inter faces, page 3-1 • Guidelines and Limit ations, page 3-1 8 • Default Setti ngs, page 3-25 • Config uring Fibre Channel Interf aces, page 3-26 • V erifyin g Fib[...]

  • Page 80

    3-2 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fib re Channel Interfaces Information About Fibre Channel Interfaces The Cisco MDS 9500 Series switch es, Cisco MDS 9222i, Cisco MDS 9216A, and Cisco MDS 9 216i switches support the Gen eration 2 modules. Each modul e or switch can ha ve on[...]

  • Page 81

    3-3 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fibre Ch annel Interfaces Information About Fibre Chann el Interfaces Note Generation 2 Fibre Chan nel switching modules are n ot supported on the Cisco MDS 9216 switch; ho wev er, th ey are supported b y both the Supervisor-1 module and t[...]

  • Page 82

    3-4 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fib re Channel Interfaces Information About Fibre Channel Interfaces DS-X9232-256K9 32-port 8-Gbps Adv anced Fibre Channel switchin g module. 4 32.4 1 or 12.8 2 8 or 10 Gbps—depen ding on the configuration Generation 3 Modules DS-X9248-96[...]

  • Page 83

    3-5 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fibre Ch annel Interfaces Information About Fibre Chann el Interfaces Port Rate Modes In Generation 2, Generation 3 , and Generation 4 mo dul es, you can conf igure the port rate modes. The port rate mode configu ration is used to dete rmi[...]

  • Page 84

    3-6 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fib re Channel Interfaces Information About Fibre Channel Interfaces Ta b l e 3-3 shows the mo dules that support dedicated, shared, and the default rate modes. Ta b l e 3-3 P ort Rate Mo de Support on Generatio n 2, Gener ation 3, and Gene[...]

  • Page 85

    3-7 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fibre Ch annel Interfaces Information About Fibre Chann el Interfaces Dedicated Rate Mode When port rate mode is configured as dedicated, a port is allocated re quired fab ric bandwidth and r elated resources to sustain line rate tr aff ic[...]

  • Page 86

    3-8 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fib re Channel Interfaces Information About Fibre Channel Interfaces Ta b l e 3-5 shows the ban dwidth provided b y the various port speed con figuration s on the 8-Gbps Fibre Channel switching mod ules. Ta b l e 3-6 shows the amou nt of ba[...]

  • Page 87

    3-9 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fibre Ch annel Interfaces Information About Fibre Chann el Interfaces All ports in 8-Gb ps Adva nced Fibre Channel switching modu les where bandwidth is shared support 1-Gbps, 2-Gbps, 4-Gbps, or 8 Gbps traf fic. Ho we ver , it is possible [...]

  • Page 88

    3-10 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fib re Channel Interfaces Information About Fibre Channel Interfaces Port Speed The port speed on an interface, combin ed with the rate mode, determines the amount of shared resources av ailable to the ports in the port group on a 48-port [...]

  • Page 89

    3-11 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fibre Ch annel Interfaces Information About Fibre Chann el Interfaces Ports configured in dedicated rate mode are allocate d the required bandwidth to sustain a line rate o f traf fic at the maximum conf igured operating speed, and ports [...]

  • Page 90

    3-12 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fib re Channel Interfaces Information About Fibre Channel Interfaces All ports in the 48- port and 24-port 4-Gbps mo dules can be confi gured to operate at 4 Gbps in sh ared mode e ven if other ports i n the port group are conf igured in d[...]

  • Page 91

    3-13 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fibre Ch annel Interfaces Information About Fibre Chann el Interfaces fc8/1 16 4.0 dedicated fc8/2 16 4.0 dedicated fc8/3 16 4.0 dedicated fc8/4 (out-of-service) fc8/5 (out-of-service) fc8/6 (out-of-service) For dedicated po rts, oversub [...]

  • Page 92

    3-14 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fib re Channel Interfaces Information About Fibre Channel Interfaces fc5/12 32 8.0 shared Port-Group 4 Total bandwidth is 32.4 Gbps Total shared bandwidth is 32.4 Gbps Allocated dedicated bandwidth is 0.0 Gbps -----------------------------[...]

  • Page 93

    3-15 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fibre Ch annel Interfaces Information About Fibre Chann el Interfaces fc5/31 32 8.0 shared fc5/32 32 8.0 shared Isola-13# show port-resources module 13 Module 13 Available dedicated buffers for global buffer #0 [port-group 1] are 3880 Ava[...]

  • Page 94

    3-16 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fib re Channel Interfaces Information About Fibre Channel Interfaces -------------------------------------------------------------------- Interfaces in the Port-Group B2B Credit Bandwidth Rate Mode Buffers (Gbps) --------------------------[...]

  • Page 95

    3-17 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fibre Ch annel Interfaces Information About Fibre Chann el Interfaces fc13/43 32 8.0 shared fc13/44 32 8.0 shared fc13/45 32 8.0 shared fc13/46 32 8.0 shared fc13/47 32 8.0 shared fc13/48 32 8.0 shared ... When disabling restricti ons on [...]

  • Page 96

    3-18 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fib re Channel Interfaces Guidelines and Limitations When you are do wngrading to a release earlier than Cisco SAN-OS Release 3.1(2), all modules keep operating in the same bandwidth f airness configurat ion prio r to the downgrad e. After[...]

  • Page 97

    3-19 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fibre Ch annel Interfaces Guidelines and Limitations Note When a Cisco or another v endor switch port is connected to a G eneration 1 module port (ISL connection), the receiv e buf fer-to-buf fer credits of the port connected to the Gener[...]

  • Page 98

    3-20 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fib re Channel Interfaces Guidelines and Limitations Generation 1 switchi ng modules ha ve speci fic numberi ng requirements. If these requ irements are not met, the module does not po wer up. The port index numbering requirements include [...]

  • Page 99

    3-21 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fibre Ch annel Interfaces Guidelines and Limitations 13 68-ef-bd-a8-40-00 to 68-ef-bd-a8-40-04 JAF1450BMBP Xbar Ports Module-Type Model Status --- ----- ----------------------------------- ------------------ ---------- 1 0 Fabric Module 3[...]

  • Page 100

    3-22 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fib re Channel Interfaces Guidelines and Limitations • The maximum number of PortChannels allo wed is 256 if all switching modules are Generation 2 or Generation 3, or bo th. • The maximum number of PortChan nels allowed i s 128 whene [...]

  • Page 101

    3-23 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fibre Ch annel Interfaces Guidelines and Limitations Ta b l e 3-1 1 P or tChannel Configur ation and A ddition Resul ts PortChannel Members Configured Speed New Member Ty p e Addition T ype Result PortChannel New Member No members Any An [...]

  • Page 102

    3-24 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fib re Channel Interfaces Guidelines and Limitations Use the show port-channel compatibil ity parameters command to obtain i nformation about PortChannel addition errors. Generation 2 interfaces Auto Auto Generation 1 Normal or force Fa il[...]

  • Page 103

    3-25 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fibre Ch annel Interfaces Default Settings Default Settings Ta b l e 3-12 lists the defa ult settings for Ge neration 2 in terface parameters. Ta b l e 3-13 lists the defa ult settings for Ge neration 3 in terface parameters. Ta b l e 3-1[...]

  • Page 104

    3-26 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fib re Channel Interfaces Configuring Fibre Channel Interfaces Configuring Fibre Channel Interfaces This section includes the following topics: • T ask Flow for Migrating Interfaces fro m Shared Mode to Dedicated M ode, page 3-26 • T a[...]

  • Page 105

    3-27 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fibre Ch annel Interfaces Configuring Fibre Ch annel Interfaces Note If you change the port bandwidth reserv ation parame ters on a 48-port or 24-port 4-Gbps module, the change affects only the chan ged port. No other ports i n the port g[...]

  • Page 106

    3-28 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fib re Channel Interfaces Configuring Fibre Channel Interfaces Step 5 Config ure the traf fic speed (1 Gbps, 2 Gbps, 4 Gbps, or autosen sing with a maximum of 2 Gb ps or 4 Gbps) to use. See the “Conf iguring Port Speed” section on page[...]

  • Page 107

    3-29 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fibre Ch annel Interfaces Configuring Fibre Ch annel Interfaces See the “Configuring Buffer -to-Buffer Credits” section on page 4-21 , and the “Conf iguring Extend ed BB_credi ts” section on pag e 4-23 . Configuring Port Speed Res[...]

  • Page 108

    3-30 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fib re Channel Interfaces Configuring Fibre Channel Interfaces Use the show interface command to v erify the port speed conf iguration for an interface on a 4-Gbp s or 8-Gbps Fibre Channel swi tching module. switch# show interface fc 9/1 f[...]

  • Page 109

    3-31 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fibre Ch annel Interfaces Configuring Fibre Ch annel Interfaces Displaying the Rate Mode Configuration for Interfaces Use show port-resour ces module command to verify the rate mode conf iguration for interfaces on a 48-port or 24-port 4 [...]

  • Page 110

    3-32 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fib re Channel Interfaces Configuring Fibre Channel Interfaces Total shared bandwidth is 12.8 Gbps Allocated dedicated bandwidth is 0.0 Gbps -------------------------------------------------------------------- Interfaces in the Port-Group [...]

  • Page 111

    3-33 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fibre Ch annel Interfaces Configuring Fibre Ch annel Interfaces fc4/12 32 8.0 shared Port-Group 3 Total bandwidth is 12.8 Gbps Total shared bandwidth is 12.8 Gbps Allocated dedicated bandwidth is 0.0 Gbps ---------------------------------[...]

  • Page 112

    3-34 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fib re Channel Interfaces Configuring Fibre Channel Interfaces Total shared bandwidth is 12.8 Gbps Allocated dedicated bandwidth is 0.0 Gbps -------------------------------------------------------------------- Interfaces in the Port-Group [...]

  • Page 113

    3-35 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fibre Ch annel Interfaces Configuring Fibre Ch annel Interfaces fc7/13 32 4.0 shared fc7/14 32 4.0 shared fc7/15 32 4.0 shared fc7/16 32 4.0 shared fc7/17 32 4.0 shared fc7/18 32 4.0 shared fc7/19 32 4.0 shared fc7/20 32 4.0 shared fc7/21[...]

  • Page 114

    3-36 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fib re Channel Interfaces Configuring Fibre Channel Interfaces Configuring Local Switching Note W e recommend that you shut do wn all of the ports on the module before you ex ecute the local switching command. If local switching is en able[...]

  • Page 115

    3-37 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fibre Ch annel Interfaces Configuring Fibre Ch annel Interfaces Disabling Restrictions on Oversubscription Ratios Prerequisites • Before disabling restrict ions on ov ersubscription ratios, ensure that you ha ve e xplicitly shut down sh[...]

  • Page 116

    3-38 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fib re Channel Interfaces Configuring Fibre Channel Interfaces Port-Group 1 Total bandwidth is 12.8 Gbps Total shared bandwidth is 12.8 Gbps Allocated dedicated bandwidth is 0.0 Gbps --------------------------------------------------------[...]

  • Page 117

    3-39 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fibre Ch annel Interfaces Configuring Fibre Ch annel Interfaces fc2/7 1 TE -- up swl -- -- fc2/8 1 FX -- down swl -- -- ... fc2/48 1 FX -- down sw1 -- -- Step 4 Disable restrictions on o versubscription ratios for the ports. switch# confi[...]

  • Page 118

    3-40 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fib re Channel Interfaces Configuring Fibre Channel Interfaces Detailed Steps T o enable restrictions on ov ersubscription ratios on a 48-port or 24-port 4-Gbps, or an y 8-Gbps Fibre Channel switching mod ule, follo w these steps: Enabling[...]

  • Page 119

    3-41 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fibre Ch annel Interfaces Configuring Fibre Ch annel Interfaces Disabling Bandwidth Fairness Restrictions • If you disable bandw idth fairness, up to a 20 pe rcent increase in internal bandwidth all ocation is possible for each port gro[...]

  • Page 120

    3-42 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fib re Channel Interfaces Configuring Fibre Channel Interfaces Use the show port-resour ces module command to v erify the out-of- ser vice configuration for interfaces on a Generation 2 and Gener ation 3 switching module. This exampl e sho[...]

  • Page 121

    3-43 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fibre Ch annel Interfaces Verifying Fibre Channel Interfaces Configuration Detailed Steps T o release the shared resources for a port group, follo w these steps: Disabling ACL Adjacency Sharing for System Image Downgrade Fibre Channel A C[...]

  • Page 122

    3-44 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fib re Channel Interfaces Verifying Fibre Channel In terfaces Configuration For detailed i nformation about the f ields in the output f rom these commands, refer to the Cisco MDS NX-OS Command Refer ence . Displaying Interface Capabilities[...]

  • Page 123

    3-45 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fibre Ch annel Interfaces Configuration Examples for Fibre Chann el Interfaces BB state change notification supported Maximum BB state change notifications 14 Rate Mode change supported Rate Mode Capabilities Shared Dedicated Receive BB C[...]

  • Page 124

    3-46 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fib re Channel Interfaces Configuration Examples for Fibre Channel Interf aces Configuration Example for 48-Port 8-Gbps Module Interfaces These steps describe how to configure the 48-port 8-G bps module interfaces: Step 1 Select the interf[...]

  • Page 125

    3-47 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fibre Ch annel Interfaces Configuration Examples for Fibre Chann el Interfaces Step 1 Select interfaces fc 3/1. switch# config t switch(config)# interface fc 3/1 Step 2 Config ure the port speed, rate mode, and port mo de on the interface[...]

  • Page 126

    3-48 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fib re Channel Interfaces Configuration Examples for Fibre Channel Interf aces switch(config-if)# switchport rate-mode shared switch(config-if)# switchport mode f Step 6 Enable the interfaces and r eturn to confi guration mode. switch(conf[...]

  • Page 127

    3-49 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fibre Ch annel Interfaces Configuration Examples for Fibre Chann el Interfaces Step 7 Select the interfaces fc 4/7 through fc 4/10. switch# config t switch(config)# interface fc 4/7 - 10 Step 8 Config ure the port speed, rate mode, and po[...]

  • Page 128

    3-50 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 3 Configuring Fib re Channel Interfaces Configuration Examples for Fibre Channel Interf aces[...]

  • Page 129

    CH A P T E R 4-1 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x 4 Configuring Interface Buffers • Information About Interf ace Buf fers, page 4-1 • Config uring Interface Buf fers, page 4-21 • V erifyin g BB_Credit Config uration, page 4-25 Information About Interface Buffers Fibre Channel interfaces use [...]

  • Page 130

    4-2 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 4 Configuring Interface Buffers Information About Interface Buffers • For Generatio n 2, Generation 3, and Ge nerat ion 4 switching mod ules, see the “Buf fe r Pools” section on page 4-2 . Note In the Cisco MDS 9100 Series switches, t he groups of [...]

  • Page 131

    4-3 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 4 Configuring Interfac e Buffers Information About Interface B uffers Note The 48-port and 24-p ort 8-Gbps modules h av e dual global buffer pools . Each buf fer pool in the 48-port modules support 24 ports and in the 24-port modules each buf fer pool s[...]

  • Page 132

    4-4 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 4 Configuring Interface Buffers Information About Interface Buffers Figure 4-3 sho w s the def ault BB_credit b uf fer allocation m odel for 24-port 8-Gbps switchi ng modules. The minimum BB_credits required t o bring up a port is tw o buf fers. Figur e [...]

  • Page 133

    4-5 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 4 Configuring Interfac e Buffers Information About Interface B uffers Figure 4-5 sho w s the def ault BB_credit b uf fer allocation m odel for 24-port 4-Gbps switchi ng modules. The minimum BB_credits required to br ing up a port is two b uffers. Figur [...]

  • Page 134

    4-6 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 4 Configuring Interface Buffers Information About Interface Buffers When you conf igure port mode to auto o r E on a Generation 3 mo dule, one or tw o of the ports w ill not come up for the follo wing configu ration: • Port Mode: auto or E for the firs[...]

  • Page 135

    4-7 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 4 Configuring Interfac e Buffers Information About Interface B uffers • T wo ports with dedicated rate mode and 8-Gb ps sp eed plus four ports with shared rate mode and 8-Gbps speed (2:1 ov ersu bscription) . • One port with dedicated rate mo de and[...]

  • Page 136

    4-8 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 4 Configuring Interface Buffers Information About Interface Buffers • One port with dedicated rate mo de and 4-Gbps speed plus three ports wi th dedicated rate mode and 2-Gbps s peed plus two ports with shared rate mod e and 4-Gbps speed (4:1 o versubs[...]

  • Page 137

    4-9 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 4 Configuring Interfac e Buffers Information About Interface B uffers • Three ports with dedicated r ate mode and 4-Gbps speed 4/44-Port 8-Gbps Host-Opt imized Fibre Channel Module BB_Credit Buffers Ta b l e 4-4 lists the BB_credit buf fer allocation [...]

  • Page 138

    4-10 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 4 Configuring Interface Buffers Information About Interface Buffers 48-Port 4-Gbps Fibre Channel Module BB_Credit Buffers Ta b l e 4-5 lists the BB_credit buf fer allocation for 48 -port 4-Gbps Fibre Chan nel switching modules. The follo wing considerat[...]

  • Page 139

    4-11 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 4 Configuring Interfac e Buffers Information About Interface B uffers Figur e 4-6 Example Speed and Rat e Configuration o n a 48-P ort 4-Gbps S witching Modu le • Six ports with dedicated rat e mode and 2-Gbps speed plus four ports with shared rat e [...]

  • Page 140

    4-12 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 4 Configuring Interface Buffers Information About Interface Buffers 24-Port 4-Gbps Fibre Chan nel Module BB_C redit Buffers Ta b l e 4-6 lists the BB_credit buf fer allocation for 24 -port 4-Gbps Fibre Chan nel switching modules. The follo wing consider[...]

  • Page 141

    4-13 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 4 Configuring Interfac e Buffers Information About Interface B uffers Figur e 4-8 Example Speed and Rat e Configuration o n a 24-P ort 4-Gbps S witching Modu le 18-Port Fibre Channel/4-Por t Gigabit Ethernet Multiserv ice Module BB_Credit Buffers Ta b [...]

  • Page 142

    4-14 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 4 Configuring Interface Buffers Information About Interface Buffers The follo wing considerations apply to BB_credit buf fers on 12-port 4-Gbps switching mo dules: • BB_credit b u f fers for ISL connections can be conf igured from a mi nimum of 2 b uf[...]

  • Page 143

    4-15 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 4 Configuring Interfac e Buffers Information About Interface B uffers 4-Port 10-Gbps Switching Module BB_Credit Buffers Ta b l e 4-9 lists the BB_credit b uff er allocation for 4- port 10-Gbps switching mo dules. Note The ports in the 4-port 10-Gbps sw[...]

  • Page 144

    4-16 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 4 Configuring Interface Buffers Information About Interface Buffers BB_Credit Buffers for Fabric Switches This section describes how b uffer credits are allocated to Cisco MDS 9 000 Fabri c switches, and includes the following topics: • Cisco MDS 9148[...]

  • Page 145

    4-17 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 4 Configuring Interfac e Buffers Information About Interface B uffers Cisco MDS 9124 Fabric Switch BB_Credit Buffers Ta b l e 4-12 lists the BB_credit b uffer allocation for MDS 9124 Fabric Swi tches. Cisco MDS 9222i Multiservice Modular Switch BB_Cred[...]

  • Page 146

    4-18 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 4 Configuring Interface Buffers Information About Interface Buffers All ports on the Generation 2 and Generatio n 3 sw itching modules supp ort extended BB_credits. Th ere are no limitations for how man y extended BB_credits yo u can assign to a port (e[...]

  • Page 147

    4-19 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 4 Configuring Interfac e Buffers Information About Interface B uffers Note The receiv e BB_credit value for the remai ning three ports depends on the port mode. The default v alue is 16 for the Fx mode and 255 for E or TE modes. The maximum v alue is 2[...]

  • Page 148

    4-20 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 4 Configuring Interface Buffers Information About Interface Buffers Buffer-to-Buffer Credit Recovery Although the Fibre Chann el standards require lo w bit e rror rates, bit errors do occur . Over ti me, the corruption of r eceiv er- ready messages, kno[...]

  • Page 149

    4-21 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 4 Configuring Interfac e Buffers Configuring Inte rface Buffers Note If you use distance e x tension (b uffer -to-buf fer credit spoofi ng) on ISLs between switches, the BB_SCN parameter on both sides of the ISL needs to be disab led. Receive Data Fiel[...]

  • Page 150

    4-22 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 4 Configuring Interface Buffers Configuring Interfac e Buffers This exampl e show s the output of the show int fc1/1 command: intfc1/1 is up ... 16 receive B2B credit remaining 3 transmit B2B credit remaining Configuring Performance Buffers Detailed Ste[...]

  • Page 151

    4-23 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 4 Configuring Interfac e Buffers Configuring Inte rface Buffers Note Use the show interface bbcredit command to dis play performance b uffer va lues and other BB _credit inform ation. Configuring Extended BB_credits Detailed Steps T o c onf igure exten[...]

  • Page 152

    4-24 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 4 Configuring Interface Buffers Configuring Interfac e Buffers Enabling Buffer-to-Buffer Credit Recovery Buf fer -to-buf fer credit reco very on ISLs (E or TE ports) is enab led by default. Detailed Steps T o use buffer -to-buffer credit reco very on a [...]

  • Page 153

    4-25 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 4 Configuring Interfac e Buffers Verifying BB_Credit Configuration Verifying BB_Credit Configuration T o display BB_credit conf iguration in formation, perform one o f the follo wing tasks: For deta iled information about the f ields in the output from[...]

  • Page 154

    4-26 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 4 Configuring Interface Buffers Verifying BB_Cred it Configuration Transmit B2B Credit is 0 Receive B2B Credit is 12 Receive B2B Credit performance buffers is 48 12 receive B2B credit remaining 0 transmit B2B credit remaining[...]

  • Page 155

    CH A P T E R 5-1 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x 5 Configuring Trunking • Information Ab out T runking, page 5-1 • Guidelines and Limit ations, page 5-7 • Default Setti ngs, page 5-11 • Config uring T runking, page 5-11 • V erifyin g T runking Conf iguration, page 5-13 • Config uratio[...]

  • Page 156

    5-2 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 5 Configuring T runking Information About Trun king Figur e 5-1 T r unking E Ports Note T runking is not sup ported by int ernal ports on both the Cisco F abric Switch for HP c_Class BladeSystem and the Cisco Fabric Switch for IBM BladeCenter . Trunking [...]

  • Page 157

    5-3 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 5 Configuring Trun king Information About Trunking Key Concepts The trunking feature i ncludes the follo wing key concepts: • TE port—If trunk mode is enabl ed in an E port and that port becomes operat ional as a trunking E port, it is referred to a[...]

  • Page 158

    5-4 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 5 Configuring T runking Information About Trun king By default, t he trunking protocol is enabl ed on E ports and disabled on F p orts. If the trunking protocol is disabled on a switch, no port o n that switch can apply ne w trunk confi gurations. Existi[...]

  • Page 159

    5-5 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 5 Configuring Trun king Information About Trunking Ti p The preferred configur ation on the Cisco MDS 900 0 Family switches is o ne side of the trunk set to auto and the other side set to on. Note When connected to a third-party swi tch, the trunk mode [...]

  • Page 160

    5-6 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 5 Configuring T runking Information About Trun king Figur e 5-3 Def ault Allow ed-Acti ve VSAN Config uration Y ou can conf igure a select set of VSANs (from the al lowed-acti ve list) to control access to the VSANs specified in a trunking ISL. Using Fig[...]

  • Page 161

    5-7 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 5 Configuring Trun king Guidelines and Limitations Figur e 5-4 Operational and Allowed VSAN Configuration Guidelines and Limitations T runking has the follo wing conf iguration guidelines an d limitations: • General Guidelines and Limitations, page 5-[...]

  • Page 162

    5-8 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 5 Configuring T runking Guidelines and Limitations • No FC-SP authentication is supported by th e NPV switch on the serv er F ports. • MDS does not enforce the uni queness of logical pWWNs across VSANs. • DPVM is not supported on trunked F port log[...]

  • Page 163

    5-9 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 5 Configuring Trun king Guidelines and Limitations Port WWN is 20:4f:00:0d:ec:6d:2b:40 Peer port WWN is 20:0a:00:0d:ec:3f:ab:80 Admin port mode is auto, trunk mode is on snmp link state traps are enabled Port mode is TE Port vsan is 1 Speed is 2 Gbps Ra[...]

  • Page 164

    5-10 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 5 Configuring T runking Guidelines and Limitations Receive B2B Credit is 32 Receive data field Size is 2112 Beacon is turned off Trunk vsans (admin allowed and active) (1,100-101,1101,1163-1166,1216,2172,2 182-2183) Trunk vsans (up) (1,2183) Trunk vsans[...]

  • Page 165

    5-11 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 5 Configuring Trun king Default Settings Default Settings Ta b l e 5-4 lists the default set tings for trunking param eters. Configuring Trunking This section includes the following topics: • Enabling the Cisco T runking and Channeling Protocols, pag[...]

  • Page 166

    5-12 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 5 Configuring T runking Configuring Trunk ing Enabling the F Port Trunking and Channeling Protocol This section descri bes ho w to enable the F port tru nking and channeling pro tocol. Prerequisites • T o av oid inconsistent conf igurations, shut all [...]

  • Page 167

    5-13 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 5 Configuring Trun king Verifying Trunking Config uration Verifying Trunking Configuration T o display trunking conf iguration information, perform one of the follo wing tasks: For detailed i nformation about the f ields in the output f rom these comma[...]

  • Page 168

    5-14 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 5 Configuring T runking Configuration Example for F Port Trunking 34 output OLS, 19 LRR, 17 NOS, 12 loop inits Example 5-2 Di splays the T r unking Prot oc ol switch# show trunk protocol Trunk protocol is enabled Example 5-3 Display s P e r VSAN Inf orm[...]

  • Page 169

    5-15 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 5 Configuring Trun king Configuration Example for F Port Tru nking Step 7 Set the port administrativ e state on NPIV and NPV switc hes to ON: switch(config)# interface fc1/2 switch(config-if)# shut switch(config-if)# no shut Step 8 Sav e the confi gura[...]

  • Page 170

    5-16 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 5 Configuring T runking Configuration Example for F Port Trunking[...]

  • Page 171

    CH A P T E R 6-1 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x 6 Configuring PortChannels • Information Ab out PortChannels, page 6-1 • Prerequisites for PortChannels, page 6-12 • Guidelines and Limit ations, page 6-1 3 • Default Setti ngs, page 6-16 • Config uring PortChannels, page 6- 17 • V erif[...]

  • Page 172

    6-2 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 6 Configuring PortCha nnels Information About PortChannels PortChannels Overview PortChannels refer to the aggregatio n of multiple physical interfaces into one logical interface to provide higher aggregated bandwidth, lo ad balancing, and link redundanc[...]

  • Page 173

    6-3 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 6 Configuring PortChan nels Information About PortChannels • Provides h igh av ailability on an ISL. If on e l in k fa il s, traffic previously carried on this link is switched to th e re mai ni ng li nks . If a link goes do wn in a PortChannel, the u[...]

  • Page 174

    6-4 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 6 Configuring PortCha nnels Information About PortChannels Figur e 6-3 P ortChanneling and T r unking PortChanneling and trun king are used separately across an ISL. • PortChanneling—Interfaces can be cha nnele d between the following sets of ports: [...]

  • Page 175

    6-5 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 6 Configuring PortChan nels Information About PortChannels Figur e 6-4 SID1 and DID1 -Ba sed Load Balancing Figure 6-5 illustrates ho w exchange-based load bala ncing wor ks. When the f irst frame in an e xchange is recei ved for forw arding on an inter[...]

  • Page 176

    6-6 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 6 Configuring PortCha nnels Information About PortChannels Figur e 6-5 SID1, DID1, and Exc han ge-Based Load Balancing For more informat ion on configuring l oad bala ncing and in-order deli very features, see the Cisco MDS 9000 F amily NX-OS F abric Con[...]

  • Page 177

    6-7 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 6 Configuring PortChan nels Information About PortChannels Ta b l e 6-1 compares ON and ACTIVE modes. PortChannel Deletion When you delete the PortChannel, the correspo nding channel membership is also deleted. All interf aces in the deleted Por tChanne[...]

  • Page 178

    6-8 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 6 Configuring PortCha nnels Information About PortChannels • Forcing an In terface Addition, page 6-9 • Interface Deletion fro m a PortChann el, page 6-9 Note For information abo ut PortChannel support on Generatio n 2 switching modules, see the “P[...]

  • Page 179

    6-9 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 6 Configuring PortChan nels Information About PortChannels Suspended and Isolated State s If the operational parameters are incompatible, the compatibility check fails and the in terface is placed in a suspended or isolated stat e based on the conf igur[...]

  • Page 180

    6-10 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 6 Configuring PortCha nnels Information About PortChannels The PortChannel protocol is enabled b y default. The PortChannel protocol expand s the PortChannel fu nctio nal model in Cisco MD S switches. It uses the exchange peer parameters (EPP) services [...]

  • Page 181

    6-11 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 6 Configuring PortChan nels Information About PortChannels The channel group numbers are select ed dynamically , and as such, the admini strati ve confi guration of the ports forming the channel group at eit her end are a pplicable to the ne wly create[...]

  • Page 182

    6-12 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 6 Configuring PortCha nnels Prerequisites for PortChan nels • Newly created PortChannels ar e allocated from the maximum possib le PortChannel (128 for Generation 1 or a co mbination of Generatio n 1 and Generation 2 switches, o r 256 for Generation 2[...]

  • Page 183

    6-13 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 6 Configuring PortChan nels Guidelines and Limitations Note On switches with Generation 1 swi tching modules, or a comb ination of Gene ratio n 1 and Generation 2 switching modules, you can confi gure a maximum of 128 PortChannels. O n switches with on[...]

  • Page 184

    6-14 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 6 Configuring PortCha nnels Guidelines and Limitations Generation 1 PortChannel Limitations This section includes th e restrictions on creation a nd add ition of PortChannel members to a PortCh annel on Generation 1 hardw are: • The 32-port 2-Gbps or [...]

  • Page 185

    6-15 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 6 Configuring PortChan nels Guidelines and Limitations • The Dynamic Port VSAN Managem ent (DPVM) da tabase will be q ueried only for the f irst physical FLOGI of each member , so that the port VSAN can be configured automatically . • DPVM does not[...]

  • Page 186

    6-16 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 6 Configuring PortCha nnels Default Settings Figure 6-8 provi des examples of in vali d configu rations. Assuming that the links ar e brought up in the 1, 2, 3, 4 sequence, link s 3 and 4 will be operati onall y dow n as the fabric is misconf igured. Fi[...]

  • Page 187

    6-17 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 6 Configuring PortChan nels Configuring PortChannels Configuring PortChannels This section includes the following topics: • Config uring PortChannels Using the W izardCreating a PortChann el, page 6-17 Configuring PortChannels Using the W izardCreati[...]

  • Page 188

    6-18 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 6 Configuring PortCha nnels Configuring PortChann els Deleting PortChannels Detailed Steps T o delete a PortChannel, follo w these steps: Adding an Interface to a PortChannel Detailed Steps T o add an interface to a Port Channel, follo w these steps : T[...]

  • Page 189

    6-19 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 6 Configuring PortChan nels Configuring PortChannels Note By default, the CLI adds a interf ace normally to a PortChannel, while DC NM-SAN adds the interface by force, unless specif ied explicitly . Forcing an Interface Addition Detailed Steps T o forc[...]

  • Page 190

    6-20 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 6 Configuring PortCha nnels Verifying PortChan nel Configur ation Enabling and Configuring Autocreation Detailed Steps T o configure automat ic channel groups, follo w these steps: Converting to Manually Configured Channel Groups Y ou can con vert autoc[...]

  • Page 191

    6-21 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 6 Configuring PortChan nels Verifying PortChannel Co nfiguration For detailed i nformation about the f ields in the output f rom these commands, refer to the Cisco MDS NX-OS Command Refer ence . Y ou can vie w specific infor mation about e xisting Port[...]

  • Page 192

    6-22 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 6 Configuring PortCha nnels Verifying PortChan nel Configur ation fcip2 [down] port-channel 78 Administrative channel mode is active Operational channel mode is active Last membership update succeeded 2 ports in total, 0 ports up Ports: fc2/1 [down] fc2[...]

  • Page 193

    6-23 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 6 Configuring PortChan nels Verifying PortChannel Co nfiguration port-channel 77: 2 ports, first operational port is none fcip1 [down] fcip2 [down] port-channel 78: 2 ports, first operational port is none fc2/1 [down] fc2/5 [down] port-channel 79: 2 po[...]

  • Page 194

    6-24 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 6 Configuring PortCha nnels Configuration Examples for F and TF PortChannels 1 ports in total, 1 ports up Ports: fc1/1 [up] * Example 6-1 0 Displays the P ortChannel Summary switch# show port-channel summary ---------------------------------------------[...]

  • Page 195

    6-25 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 6 Configuring PortChan nels Configuration Examples for F a nd TF PortChannels switch(config)# interface fc2/1-3 switch(config-if)# shut switch(config-if)# switchport mode NP switch(config-if)# switchport speed 4000 switch(config-if)# switchport rate-mo[...]

  • Page 196

    6-26 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 6 Configuring PortCha nnels Configuration Examples for F and TF PortChannels switch(config-if)# switchport mode NP switch(config-if)# no shut switch(config-if)# exit Step 6 Config ure the PortChannel member interf aces on the NPV switch in dedicated mod[...]

  • Page 197

    CH A P T E R 7-1 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x 7 Configuring N Port Virtualization • Information About N Port V irtualization, page 7-1 • Guidelines and Limit ations, page 7-8 • Config uring N Port V irtual ization, page 7-10 • V erifyin g NPV Configu ration, page 7-13 Information About[...]

  • Page 198

    7-2 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 7 Configuring N Port Virtua lization Information About N Port Virtualization • Cisco Fabric Switch for HP c-Class BladeSystem • Cisco Fabric Switch for IBM BladeCenter • Cisco Nexus 5 000 Series switches Note NPV is av ailable on these switches onl[...]

  • Page 199

    7-3 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 7 Configur ing N Port Virtualization Information About N Port Virtualization Figur e 7 -2 Cisco NPV Fabr ic Config uration While NPV is simil ar to N port identif ier virtuali zation (NPIV), it does not of fer exactly the same functionality . NPIV provi[...]

  • Page 200

    7-4 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 7 Configuring N Port Virtua lization Information About N Port Virtualization NPV Mode A switch is in NPV mode after a user has enabled N PV and the switch has successfully rebooted. NPV mode applies to an enti re switch. All end de vices connected to a s[...]

  • Page 201

    7-5 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 7 Configur ing N Port Virtualization Information About N Port Virtualization NP Ports An NP port (proxy N po rt) is a port on a de vice that is in NPV mode and connected to the NPV cor e switch using an F port. NP ports beha ve like N ports e xcept that[...]

  • Page 202

    7-6 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 7 Configuring N Port Virtua lization Information About N Port Virtualization Figure 7-4 sho w s the internal FLOGI flow s between an NPV core switch and an NP V de vic e. Figur e 7 -4 Inter nal FLOGI Flows Ta b l e 7-1 identifies the internal F LOG I pa [...]

  • Page 203

    7-7 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 7 Configur ing N Port Virtualization Information About N Port Virtualization NPV CFS Distribution over IP NPV devices use only IP as the transpor t medium. CFS uses multica st forwarding for CFS distribution. NPV de vices do not ha ve ISL connecti vity [...]

  • Page 204

    7-8 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 7 Configuring N Port Virtua lization Guidelines and Limitations Disruptive Disrupti ve load balance works independent of aut omati c selection of interfaces and a configured traff ic map of external i nterfaces. This feature forces reiniti alization of t[...]

  • Page 205

    7-9 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 7 Configur ing N Port Virtualization Guidelines and Limitations • NPV de vices can connect to multiple NPV core swit ches. In other words, di fferent NP ports can be connected to differen t NPV core switches. • NPV supports NPIV -capable module serv[...]

  • Page 206

    7-10 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 7 Configuring N Port Virtua lization Configuring N Port Virtualization NPV and Port Security C onfiguration Guidelines Port security is enabled on the NPV core switch on a per interf ace basis. T o enab le port securi ty on the NPV core switch for devic[...]

  • Page 207

    7-11 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 7 Configur ing N Port Virtualization Configuring N Port Virtualization switch# copy running boot flash:filename The config uration can be reapplied later using the follo wing command: switch# copy boo tflash:filena me running-confi g Detailed Steps T o[...]

  • Page 208

    7-12 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 7 Configuring N Port Virtua lization Configuring N Port Virtualization Configuring NPV Traffic Management The NPV traf fic management feature is enabled after config uring NPV . Conf iguring NPV traf fic management in volves conf iguring a list of ext e[...]

  • Page 209

    7-13 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 7 Configur ing N Port Virtualization Verifying NPV Config uration Enabling the Global Policy fo r Disruptive Load Balancing Disrupti ve load balancing allo ws you to re view the load on all the exte rnal interfaces and balance the load disrupti vely . [...]

  • Page 210

    7-14 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 7 Configuring N Port Virtua lization Verifying NPV Configuration Verifying NPV T o view all the NP V devi ces in all the VSANs that the aggr egator swit ch belongs to, enter the show fcns database command. switch# show fcns database VSAN 1: ------------[...]

  • Page 211

    7-15 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 7 Configur ing N Port Virtualization Verifying NPV Config uration switch# show npv flogi-table -------------------------------------------------------------------------------- SERVER EXTERNAL INTERFACE VSAN FCID PORT NAME NODE NAME INTERFACE ----------[...]

  • Page 212

    7-16 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 7 Configuring N Port Virtua lization Verifying NPV Configuration[...]

  • Page 213

    CH A P T E R 8-1 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x 8 Configuring FlexAttach Virtual pWWN • Information Ab out FlexAtt ach V irtual pWWN, page 8-1 • Guidelines and Limit ations, page 8-3 • Config uring FlexA ttach V irtual pWWN, page 8- 3 • V erifying Fle xAttach V irtual pWWN Conf iguration[...]

  • Page 214

    8-2 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 8 Configurin g FlexAttach Virtual pWWN Information About Flex Attach Virtual pWWN • Replacement to the same port—A failed server can be replaced onto the same port without ch anging the SAN. The n ew s erver ge ts a same pWWN as the f ailed server be[...]

  • Page 215

    8-3 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 8 Configuring FlexAttac h Virtual pWWN Guidelines and Limitations Security Settings for FlexAttach Virtual pWWN Security settings for the Fle xAttach virtual pWWN f eature are done by port s ecurity at the NPV core. Node WWN of the end device is used to[...]

  • Page 216

    8-4 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 8 Configurin g FlexAttach Virtual pWWN Configuring FlexAttach Virtual pWWN Troubleshooting Tips • When the interface-list v alue is not included in the command, virtual pWWN is assi gned globally . • All the interfaces men tioned in the interface-lis[...]

  • Page 217

    8-5 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 8 Configuring FlexAttac h Virtual pWWN Verifying FlexAttach Virt ual pWWN Configuration Restrictions • The specified v irtual pWWN and the real pWWN must not be logged in. Detailed Steps T o map pWWN to virtual pWWN, perform this task: Verifying FlexA[...]

  • Page 218

    8-6 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 8 Configurin g FlexAttach Virtual pWWN Monitoring FlexAttach Virtual pWWN Verifying the End Device T o verify that the end de vice is logged with the correct virtual WWN s, use the show fcns database command on the NPV core. (See Example 8-2 .) Example 8[...]

  • Page 219

    8-7 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x Chapter 8 Configuring FlexAttac h Virtual pWWN Monitoring FlexAttach Virtual pWWN real port WWN and virtual WWN cannot be same This occurs w hen you try to conf igure FlexAtt ach with a similar v alue for pWWN and virtual pWWN. Use different v alues for pWW N a[...]

  • Page 220

    8-8 Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide OL-29284-01, Release 6.x Chapter 8 Configurin g FlexAttach Virtual pWWN Monitoring FlexAttach Virtual pWWN[...]

  • Page 221

    CH A P T E R 9-1 Cisco MDS 9000 Family NX-OS Qualit y of Service Configuration Guide OL-29284-01 9 Configuring Port Tracking The port tracking feature i s unique to the Cisco MDS 9000 F amily of switch es. This feature uses information ab out the operational stat e of the link to initiate a f ailure in the link that connects the edge de vice. This [...]

  • Page 222

    9-2 Cisco MDS 9000 Family NX-OS Quality of Service Configuration Guide OL-29284-01 Chapter 9 Configur ing Port Tracking Guidelines and Limitations Figur e 9-1 T raf fic Recovery Using P ort T rac king The port tracking feature monitors and det ects failures that cause to pology changes and b rings do wn the links connecting the attached devices. Wh[...]

  • Page 223

    9-3 Cisco MDS 9000 Family NX-OS Qualit y of Service Configuration Guide OL-29284-01 Chapter 9 Configuring Port Tr acking Configuring Port Tracking Configuring Port Tracking Port tracking has the follo wing features: • The application brings th e linked port do wn when the tracke d port goes do wn. When the tracked port recov ers from the failure [...]

  • Page 224

    9-4 Cisco MDS 9000 Family NX-OS Quality of Service Configuration Guide OL-29284-01 Chapter 9 Configur ing Port Tracking Configuring Port Trac king Binding a Tracked Port Operationally When you conf igure the f irst tracke d port, operationa l bi nding is automatically in ef fect. When you use this method, you ha ve the option to monit or multiple p[...]

  • Page 225

    9-5 Cisco MDS 9000 Family NX-OS Qualit y of Service Configuration Guide OL-29284-01 Chapter 9 Configuring Port Tr acking Configuring Port Tracking Tracking Multiple Ports Detailed Steps T o track multiple ports, follo w these steps: Information About Monitoring Ports in a VSAN Y ou can opt ionally conf igure one VSAN from the set of all operational[...]

  • Page 226

    9-6 Cisco MDS 9000 Family NX-OS Quality of Service Configuration Guide OL-29284-01 Chapter 9 Configur ing Port Tracking Displaying Port Tracking Informatio n Information AboutForceful Shutdown If a tracke d port flaps frequently , then tracking ports using th e operational binding feature may cause frequent topol ogy change. In this case, y ou may [...]

  • Page 227

    9-7 Cisco MDS 9000 Family NX-OS Qualit y of Service Configuration Guide OL-29284-01 Chapter 9 Configuring Port Tr acking Displaying Port Tracking Information 269946 frames input, 22335204 bytes 0 discards, 0 errors 0 CRC, 0 unknown class 0 too long, 0 too short 205007 frames output, 10250904 bytes 0 discards, 0 errors 0 input OLS, 0 LRR, 0 NOS, 0 l[...]

  • Page 228

    9-8 Cisco MDS 9000 Family NX-OS Quality of Service Configuration Guide OL-29284-01 Chapter 9 Configur ing Port Tracking Example 9-4 Displ ays a F orced Shutdown Configuration switch# show interface fc 1/5 fc1/5 is up Hardware is Fibre Channel, FCOT is short wave laser Port WWN is 20:05:00:05:30:00:47:9e Admin port mode is F Port mode is F, FCID is [...]

  • Page 229

    IN-1 Cisco MDS 9000 Family NX-OS In terfaces Configurat ion Guide OL-29284-01, Release 6.x INDEX Symbols * (asterisk) first operational port 6-20 Numerics 12-port 4-Gbps swi tching modules BB_credi t buffers 4-13 configuration guid elines 3-28 default settings 3-25 See also switching modules 16-port switching modules configuring BB _credits 4-1 LED[...]

  • Page 230

    Index IN-2 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x auto port mode description 2-5 interface configuration 2-2 autosensing speed Generation 2 switchi ng modules 2-10 B bandwidth fai rness disabling 3-41 enabling 3-40 BB_credi t buffers 12-port 4-Gbps swi tching module allocations 4-13 12-port 4-Gbps switc[...]

  • Page 231

    Index IN-3 Cisco MDS 9000 Family NX-OS In terfaces Configurat ion Guide OL-29284-01, Release 6.x PortChannel links 6-2 enhanced ISLs. See EISLs E port mode classes of service 2-3 description 2-3 E ports 32-port guidelines 2-18 32-port switching module configu ration guidelines 6-14 configuring 2-22 isolation 2-9 exchange link parameter. See ELP exp[...]

  • Page 232

    Index IN-4 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x interface modes 2-5 See also F ports; FL ports 2-5 G Generation 1 switchi ng modules extended BB _credits 4-18 port index a llocations 3-19 Generation 2 switchi ng modules buffer groups 4-2 to 4-15 configuring po rt speeds 3-29 configuring rate mo des 3-[...]

  • Page 233

    Index IN-5 Cisco MDS 9000 Family NX-OS In terfaces Configurat ion Guide OL-29284-01, Release 6.x N NL ports interface modes 2-6 nonparticipat ing codes description 2-9 NPIV description 7-2 enabling 7-10 NP links 7-5 N port identifier vi rtualization. See NPIV NL ports See also Nx ports NP-ports 7-5 NPV, configuring 7-10 NPV mode 7-4 O operational s[...]

  • Page 234

    Index IN-6 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x port speed gr oup configuring 2-26 port speeds configuring 2-10, 2-25 configuring on Generat ion 2 switching module interfaces 3-29 displayin g configuration 3-30 port tracking default settings 9-2 description 9-1 displaying info rmation 9-6 enabling 9-3[...]

  • Page 235

    Index IN-7 Cisco MDS 9000 Family NX-OS In terfaces Configurat ion Guide OL-29284-01, Release 6.x TL ports ALPA caches 2-14 configuring 2-22, 2-29 description 2-13 displayin g information 2-50 private devices 2-50 virtual devices 2-51 tracked po rts binding o perationa lly 9-4 translative loop port mode. See TL port m ode trunk-allowed VSAN lists de[...]

  • Page 236

    Index IN-8 Cisco MDS 9000 Family NX-OS In terfaces Configuration Guide OL-29284-01, Release 6.x[...]