SMC Networks TigerStack 100 1000BASE-X manuale d’uso

Stackable F ast Ether net Switch ◆ 24 100B ASE-FX MT -RJ ports ◆ Optional 100B ASE-FX or 1000B ASE-X modules ◆ Optional stack module for linking up to four units ◆ 8.8 Gbps of aggreg ate switch bandwidth ◆ Support for redu ndant po wer unit ◆ Up to f i v e port trunks per switch ◆ Port mirroring for non-intrusi v e analysis ◆ QoS su[...]

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38 T esla Irvine, CA 92618 Phone: (949) 679-8000 T igerStack 100 Management Guide From SMC’ s T iger line of featu re-rich workgroup LAN solutions November 2002 Pub. # F2.47 150200025700A R01[...]

Infor mation fur nished by SMC Netw orks , Inc . (SMC) is believed to be accurate and reliable . Howev er , no re sponsibility is assumed by SMC for its use, nor for any infring ements of patents or o ther rights of third par ties which ma y result from its use. No license is granted by implication or otherwise under any patent or patent ri ghts of[...]

i L IMITED W ARRANTY Limited W ar ranty Statement : SMC Networks , Inc . (“SMC”) warrants its products to be free from defects in workma nship and materials, under normal use and ser vice, for the applicable warranty ter m. All SMC products carr y a standard 90-day limited w ar ranty from the date of purchase from SMC or its A uthoriz ed R esel[...]

L IMITED W AR RANTY ii LIABILITY IN CONNECTI ON WITH THE SALE, INSTALLA TION , MAINTENANCE OR USE OF ITS PROD UCTS . SMC SHALL NOT BE LIABLE UNDER THIS W ARRANTY IF ITS TESTING AND EXAMIN ATION DISCLOSE THE ALLEGED DEFECT IN THE PR ODUCT DOES NOT EXIST OR W AS CA USED BY CUSTOMER’S OR ANY THIRD PER SON ’S MISUSE, NEGLECT , IMPR OPER INST ALLATI[...]

iii T ABLE OF C ONTENTS 1 Switch Management . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Configu ration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Factory De faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Required Connections . . . . . . [...]

T ABLE OF C ONTENTS iv Using a Mirror Port for Analysis . . . . . . . . . . . . . . . . . . . . . . . . 2-44 Configuring P ort Trunks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-45 IGMP Multicast Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-48 Configuring IGMP . . . . . . . . . . . . . . . . . . . . . . [...]

T ABLE OF C ONTENTS v Expansion Slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 -10 IP Configurat ion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11 SNMP Configur ation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13 SNMP Comm unity . . .[...]

T ABLE OF C ONTENTS vi Configuring IGMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-43 IP Multica st Registration Ta ble . . . . . . . . . . . . . . . . . . . . . . . . . 3 -44 Port Me nus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-45 Port Informat ion . . . . . . . . [...]

T ABLE OF C ONTENTS vii B Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1 Console Port Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1 DB-9 Port Pin Assig nments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1 Console Port to 9-Pin COM Port on PC . . . . . . . . . . . .[...]

T ABLE OF C ONTENTS viii[...]

1-1 C HAPTER 1 S WITCH M ANAGEMENT Configuration Options F or adv anced manageme nt capability , the Tige rStac k 100 managem ent ag ent pro vides a menu-dri ven system configuration program. T his prog ram can be accessed by a direct or modem connection to the serial por t on the rear panel (out-of-band), or b y a T elnet connection ov er the netw[...]

S WITCH M ANAGEMENT 1-2 Required Connections Console Port (Out-of-Band) Connections Attach a VT100 compatible ter minal or a PC r unning a ter minal emulation prog ram to the serial por t on the sw it ch’ s rear panel. Use the null-modem cable prov ided with this package, or use a null modem connection that complies with the wiring assignments sh[...]

R EQUIR ED C ONNECTIONS 1-3 In-Band Connections Prior to accessing the Netw ork Ma nage ment Module via a netw ork connection, you must first configure it with a v alid IP address , subnet mask, and default gateway using an out-of-band connection or the BOOTP protocol. After configuring the switch’ s IP pa rameters , you can access the on-board c[...]

S WITCH M ANAGEMENT 1-4 Factory Defaults The default settings for switch configuration parameters . Eac h parameter can be changed via the console menus or T elnet. Parameter Default Value System Configuration Management VLAN All IP State USER-CONFIG IP Address 10.1.0.1 NetMark 255.255.0.0 Default Gateway Null User Names admin, guest Password <n[...]

F ACTOR Y D EFAULT S 1-5 Path Cost 4 - 1000Mbps ports 19 - 100Mbps ports 100 - 10Mbps ports Port Priority 128 Spannin g Tree Protocol Enabled Spanning Tree F ast Forwarding 10/100 Mbps ports Enabled Virtual LANs Acceptabl e VLAN Frame Type All Configurable P VID Tagging Yes Untagged VLAN G roup Assi gnment 1 VLAN Ingress Filtering False VLAN Learni[...]

S WITCH M ANAGEMENT 1-6[...]

2-1 C HAPTER 2 U SING THE S YSTEM C ONFIGURATION P ROGRAM Login Screen Once a direct connection to the seri al por t or a T elnet connection is established, the login screen for the on-board configuration prog ram appears as shown below . If this is your first t ime to log in to the configuration program, then the default us er names are “admin?[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-2 Y ou should define a new administrator passw ord, record it and put it in a safe place. Select Console Login Configuration from the Manag ement Setup Menu and enter a new passw ord for the administrator . Note that passw ords can consist of up to 11 alphan ume ric characte rs and a re not case sens[...]

M AIN M ENU 2-3 Main Menu With the system configuration progra m you can define sy stem parame ters , manag e and control the switch, the c onnected stack and all its ports , or monitor network conditions . T he figure below of the Main Menu and the following table briefly describe the se lections a vailable from this program. Note: Options for the[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-4 Management Setup Menu Network Conf iguration Includes IP se tup, Ping facility, HTTP (Web agent) setup, Telnet con figur ation, and MAC address. Serial Port Configuratio n Sets communic ation parame ters fo r the serial port, including man agement mode , baud rate, cons ole time-out, and screen da [...]

M AIN M ENU 2-5 BStorm Control Configuration Allows you to enable/disabl e broadcast s torm control on a per-port basis and set the packet-p er-second threshold . Extended Bridge Configuration Displays/co nfigures extended bridge capab ilities provided by this switc h. 802.1P Conf iguration Configures defaul t port priorities an d queue assignments[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-6 Static Unicast Addres s Table Configurati on Used to manually config ure host MAC addresses in the unicast table. Static Multic ast Address Table Configurat ion* Used to manually config ure host MAC addresses in the multicast table. Restart Syste m Restarts syst em with options to use POST, or to r[...]

S YSTEM I NFOR MATION M ENU 2-7 System Information Menu Use the Sys tem Infor mation Men u to display a basic description of the switch, including contact infor mati on, and hardware/fir mware v ersions . System Information Menu ======================= System Information ... Switch Information ... <OK> Use <TAB> or arrow keys to move. &[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-8 Displaying System Information Use the System Infor mation screen to display descriptiv e infor mation about the switc h, or for quick syst em id entification as sho wn in th e following figure and table . System Information ================== System Description : TigerStac k 100 SMC6924MT System Ob[...]

S YSTEM I NFOR MATION M ENU 2-9 Displaying Switch Version Information Use the Switc h Infor mation screen to displa y hardware/fir mware v ersion numbers for the main board, as well as the pow er status . Switch Information : Unit 1 ================== Main Board Hardware Version : V5.0 Firmware Version : V1.21 Serial Number : 00-CB-00-00-00-00 Port[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-10 Expansion Slot 2 Shows module type if ins erted: 100BASE-FX (MMF or SMF), 1000BASE-SX, 1000BASE-LX, 1000BASE-T, or Stacking. Agent Module Hardware Version Hardware ve rsion of the agen t module. POST ROM Version Power-On Self-Test ve rsion number. Firmware Version Firmware ve rsio n of the agent m[...]

M ANAGEMENT S ETUP M ENU 2-11 Management Setup Menu After initially log ging onto the sy stem, adjust the comm unication parameters for your console to ensu re a reliable connection (Serial Port Configuration). Specify the IP addresses for the switch (Netw ork Configuration / IP Configuration), and then set the Administrator and User passw ords (Co[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-12 Changing the Network Configuration Use the Netw ork Configuration menu to set the bootup option, configure the switch ’ s Inter net Protocol (IP) parameters , e nable the on-board W eb ag ent, or to set the n umber of conc urrent T elnet sessions allow ed. T he screen shown belo w is described i[...]

M ANAGEMENT S ETUP M ENU 2-13 IP Configuration Use the IP Configuration screen to se t the bootup option, or configure the switch’ s IP parameters . T he screen sho wn below is described in the following table . Network Configuration : IP Config uration ================================= ======= Interface Type : Ethernet IP Address : 10.1.113.29 S[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-14 Default Gateway Gateway used to pass trap mess ages from the system’s agent to the management sta tion. Note that the gateway must be defined if the management statio n is located in a different IP segment. The default v alue is null. IP State Specifies whether IP function ality is enabled via m[...]

M ANAGEMENT S ETUP M ENU 2-15 IP Connectivity Test (Ping) Use the IP Connecti vity T est to see if another site on the Internet can be reached. The screen sho wn below is described in the following table . Network Configuration : IP Con nectivity Test (Ping) ============================== ===================== IP Address : Test Times : 1 Interval :[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-16 HTTP Configuration Use the HTTP Configuration screen to enable/disable the on-board W eb agent, and to specify the TCP port th at will pro vide HTT P ser v ice . The screen shown belo w is described in the follo wing table. Network Configuration : HTTP Confi guration ==============================[...]

M ANAGEMENT S ETUP M ENU 2-17 Configuring the Serial Port Y ou can access the on-board configur ation prog ram by attac hing a VT100 compatible device to the switch’ s serial por t. (F or more infor mation on connecting to this port, see “R equi red Connections” on pag e 1-2.) T he communicatio n parameters for this por t can be accessed from[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-18 Parity None Sets the parity of the RS-232 port. Options : no ne/odd/even Time-Out 10 minutes If no input is re ceived from th e attached device after this interval, th e current session is automatic ally closed. Range : 0 - 10 0 minutes; where 0 i ndicates disabled Auto Refresh 5 se conds Sets the[...]

M ANAGEMENT S ETUP M ENU 2-19 Assigning SNMP Parameters Use the SNMP Configuration screen to di splay and modif y parameters for the Simple Netw ork Manag ement Prot ocol (SNMP). T he switch includes an on-board SNMP agent which monitors the status of its hardware , as well as the traf fic passing through its por ts . A computer attac hed to the ne[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-20 Configuring Community Names The following figure and table descri be how to configure the community strings authorized for management ac cess . Up to 5 community names may be entered. Note: The default community string is “public” with Read/ Write acce ss. SNMP Configuration : SNMP Commu nitie[...]

M ANAGEMENT S ETUP M ENU 2-21 Configuring IP Trap Managers The following figure and table desc ribe ho w to specify manag ement stations that will receiv e authentica tion failure message s or other trap messages from the switch. Up to 5 trap managers may be entered. SNMP Configuration : IP Trap Ma nagers =============================== ====== IP A[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-22 Console Login Configuration Use the Management Setu p: Console Login Config uration to restrict manag ement access based on specified user names and passw ords , or to set the inv alid passw ord threshold and time-out . There are only tw o user types defined, ADMIN (Administrator) and GUEST , but [...]

M ANAGEMENT S ETUP M ENU 2-23 Parameter Default Description Password Threshold 3 Sets the password intr usion threshold which limits the number of failed logon attempts. Range : 0~65535 Lock-out Time 0 The time (in se conds) the manage ment consol e will be di sabled due to an exces sive number of failed logon attempts. Range : 0~65535 (0 indicates[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-24 Downloading System Software Using TFTP to Download Over the N etwork Use the TFTP Do wnload men u to load softw are updates into the switch. The download file should be an SMC6924MT binar y file from SMC; otherwise the ag ent will not accept it. T he success of the download operation depends on th[...]

M ANAGEMENT S ETUP M ENU 2-25 Saving the System Configuration Use the Configuration Sa ve & R estore menu to sa v e the switch configuration settings to a file on a TF TP ser v er . The file can be later downloaded to the switch to restore the switc h’ s settings . T he success of the operation depends on the accessibility of the TFTP ser ver[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-26 Configuration Download Download Server IP IP a ddress of a TFTP server. Download Filen ame The name of the file that contains the switch configuration s ettings you wish to restore. [Process TFTP Download] Issues a reques t to the TFTP server to downlo ad the specif ied file. Download Status Indic[...]

M ANAGEMENT S ETUP M ENU 2-27 Configuring Management Access Use the Management Configuration menu to define w hic h VLAN has management access to the switch. P a rameters sho wn on this screen are indicated in the following figure and table. Management Configuration ========================= Management VLAN : ALL VLAN : 1 <APPLY> <OK> &[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-28 Configuring the Switch Th e Device Control menu is used to control a broad rang e of functions , including por t configurat ion, Spanning T ree, port mir roring, multicast filtering , and Vir tual LANs . Each of the setup screens provided by these configuration menus is described in the following [...]

C ONFIGURING THE S WITCH 2-29 Extended Bridge Configuration Displays/co nfigures extended bridge capab ilities provided by this switch. 802.1P Conf iguration Configures default port priorities and queue assignments. 802.1Q VLAN Base Information Displays basic VLAN info rmation, such as VLAN version num ber and maximum VLANs sup ported. 802.1Q VLAN [...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-30 Configuring Port Parameters Use the P ort Configuration menus to set or display comm unication parameters for any por t or module in the stac k. Port Configuration : Unit 1 Po rt 1 - 12 ================== Flow Control on all ports : [E nable] [Disable] Port Type Admin Flow Control Speed and Duplex[...]

C ONFIGURING THE S WITCH 2-31 Note: MT-RJ ports operate at 100 Mbps and support full- and half-d uplex mode. 100BASE-FX module ports operate at 100 Mbps, full-duplex only. 1000BASE-SX and 1000BASE-LX ports are fixed at 1000 Mbps, but auto-negotiate duplex mode and flow control. 1000BASE-T ports auto -negotiate speed (1000/100/10 Mbps), duplex mode [...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-32 Viewing the Current Port Configuration The P or t Infor mation screen displays the port type, status , link state, and f low control in use, as well as the communication speed and duplex mode. T o chang e any of the por t settings , use the P ort Configuration menu. Port Information : Unit 1 Port [...]

C ONFIGURING THE S WITCH 2-33 FlowControl InUse Shows the flow con trol type in use. Flow co ntrol can eliminate frame loss by “bl ocking” traffic from end stations conn ected directly to the switch. Back pressure is used for h alf duplex and IE EE 802.3x fo r full dupl ex. Note that flow control shou ld not be used if a port is conn ected to a[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-34 Using the Spanning Tree Algorithm The Spanning T ree Alg orithm can be us ed to detect and disable netw ork loops , and to provide backup links be tween switc hes , bridg es or routers . Th is allows the switch to interact with other bridging devices (that is, an ST A-compliant switch, bridge or r[...]

C ONFIGURING THE S WITCH 2-35 Parameter Default Description Spanning Tree Protocol Enabled Enable th is parameter to part icipate in a STA compliant net work. Priority 32,768 Device priority is used in selecting the root de vice, root port, and desi gnated port. The device with the highest prio rity becomes the STA roo t device. However, if all dev[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-36 Max (Message) Age 20 The maxim um time (in seconds) a device can wait without rece iving a configuratio n message before attempti ng to reconfig ure. All device ports (except for designated ports) shou ld receive con figuration messages at regular interval s. Any port that ages out STA information[...]

C ONFIGURING THE S WITCH 2-37 Configuring STA for Ports The following figure and table de scribe port STA configuration. Spanning Tree Port Configurati on : Unit 1 Port 1 - 12 ============================== == Fast forwarding on all ports : [Enable] [Disable] Port Type Priority Cost FastForwarding ------------------------------- -------------------[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-38 Note: Fast Forwarding enables end-node workstations and servers to overcome time-out problems when the Spanning Tree Algorithm is implemented in a network. Ther efore, Fast Forwarding should only be enabled for ports conne cted to an en d-node device. (Path) Cost 100/19/4 This parameter is us ed b[...]

C ONFIGURING THE S WITCH 2-39 Viewing the Current Spanning Tree Information The Spanning T ree Infor mation screen displa ys a summar y of the ST A infor mation for the o verall bridge or for a spec ific port. T o make any changes to the para meters for the Sp anning T ree, use the Spanning T ree Configuration men u. Displaying the Current Bridge S[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-40 Parameter Description Priority Device priority is used in sele cting the root device, root port, and designated port. Th e device wi th the highest priority becomes th e STA root device. Howe ver, if all devices have the same prio rity, the device with the lowest MAC address wil l then become the [...]

C ONFIGURING THE S WITCH 2-41 Displaying the Current STA for Ports The parameters shown in the follo wing figure and table are for port STA Infor mation. Spanning Tree Port Inf ormation : Unit 1 Port 1 - 12 ====================== ======== Port Type Status Designated Designated Designated Cost Bridge P ort --------------------------- ---------------[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-42 Parameter Description Type Sho ws port type as: 100FX : 100BASE-FX 1000SX : 1000BASE-SX 1000LX : 1000BASE- LX 1000T : 1000BASE-T Status Displays current state of this port within the Spanning Tree: No Link No link has been es tablished on t his port . Disabled Port has been disabl ed by the user o[...]

C ONFIGURING THE S WITCH 2-43 Designated Bridge (ID) The priority and MAC address of the device through which this port must com municate to reach the root of the Spanning Tree. Designated Port (ID) The priority and number of the port on the desi gnated bridging device through which this switch must com municate with the root of the Spanning Tree. [...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-44 Using a Mirror Port for Analysis Y ou can mir ror traffic from any source por t to a targ et por t for real-time analysis . Y ou can then attach a logic analyzer or RMON probe to the target por t and study the traffic c rossing the source por t in a comple tely unobtr usiv e manner . When mir rori[...]

C ONFIGURING THE S WITCH 2-45 Configuring Port Trunks P ort tr unks can be used to increase the bandwidth of a netw ork connection or to ensure fault recov er y . Y ou can configure up fi ve tr unk connections (combining 2~4 por ts into a fat pipe) betw een any tw o standalone SMC6924MT switches , or up t o 12 for an entire stack. How ever , before[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-46 Y ou can use the P ort T r unking Configur ation screen set up port tr unks as sho wn below: Port Trunking Configuration =========================== Trunk ID Status Member List 1234 --------- -------- -------- --- ----------- ----------- -------- --- -- -------- Unit : - Unit : - Unit : - Unit : -[...]

C ONFIGURING THE S WITCH 2-47 The MT -RJ por ts used for one s ide of a tr unk must all be on the same inter nal switch c hip . The por t g roups per mitted include: The 100B ASE-FX fiber por ts used for one side of a tr unk must all be on the same module. Ho wev er , the 1000BAS E-X por ts used for one side of a tr unk may be on any switc h in the[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-48 IGMP Multicast Filtering Multicasting is used to support real -time applications such as video conferencing or streamin g audio . A multicast ser ver does not ha ve to establish a separate connect ion with eac h client. It merely broadcasts its ser vice to the networ k, and any hosts which w ant t[...]

C ONFIGURING THE S WITCH 2-49 Configuring IGMP This protocol allows a host to infor m its loc al switc h/router that it wants to receiv e transmissions addressed to a specific multicast g roup . Y ou can use the IGMP Configuration screen to configure multicast filtering shown below . Note: The defau lt values ar e indicated in the sampl e screen. I[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-50 Configuring Broadcast Storm Contr o l Use the Broadcast Stor m Control C onfiguration screen to enable broadcast stor m control for any port on the switc h, as shown belo w . Broadcast Storm Control Configuration : Unit 1 Port 1 - 12 =============================== ======= Broadcast control on all[...]

C ONFIGURING THE S WITCH 2-51 Configuring Bridge MIB Extensions The Bridge MIB includes extensions for managed devices that suppor t T raffic Classes and Vir tual LANs . T o display and configure these extensio ns , use the Extend ed Bridg e C onfiguration screen as shown below . Extended Bridge Configuration ============================= Bridge Ca[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-52 Configurable PVID Tagging This s witch all ows you to override the de fault PV ID (Port VLAN ID) assigned to untagged incoming fra mes under “802.1Q VLAN Port Configur ation” on page 2-62.) Local VLAN Capable This switch does not support multi ple local bridges (that is, multiple Spanning Tree[...]

C ONFIGURING THE S WITCH 2-53 Configuring Traffic Classes IEEE 802.1p defines up to 8 separate traffic classes . This switch supports Quality of Ser vice (QoS) by using two pr iority queues , with W eighted F air Queuing for each port. Y ou can use the 802.1P Configuration menu to configure the default priority for each port, or to display the mapp[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-54 Port Priority Configuration Inbound frames that do not hav e any VLAN tags are tag g ed with the input por t’ s default VLAN ID (PVID) an d th e Default Ing ress User Priority as shown in the following menu, and then sor ted into the appropriate priority queue at the output port. (Note that if t[...]

C ONFIGURING THE S WITCH 2-55 802.1p Port Traffic Class Information This switch provides tw o priority le vels with W eighted F air Queui ng for por t egress . This means that any frames with a priority tag from 0~3 are sent to the lo w priority queue “0” wh ile those from 4~7 are sent to the high priority queue “1” as sho wn in the followi[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-56 Configuring Virtual LANs Y ou can use the VLAN configuration menu to assign any por t on the switch to any of up to 256 LAN g roups . In conv entional netw orks with routers , broadcast traffic is split up in to separate domains . Switches do not inherently support broadcast domains . This can lea[...]

C ONFIGURING THE S WITCH 2-57 802.1Q VLAN Current Table Information This screen sho ws the cur rent port members of each VLA N and whether or not the port suppor ts VLAN tag ging . P or ts assigned to a large VLAN g roup that crosses sev eral switches should use VLAN tag ging . Ho wev er, if you just want to create a small port- based VLAN for one [...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-58 Creation Time The value of sysUpT ime (System Up Time) when this VLAN was created. Status Show s how this VLAN was added to the switch. Dynamic GVRP : Automatic ally learned via GVRP. Permanent: Added as a static entry. Unit Stac k unit. Current Egress Ports Shows the port s whic h have been added[...]

C ONFIGURING THE S WITCH 2-59 802.1Q VLAN Static Table Configuration Use this sc reen to create a new VLAN or modif y the settings for a n existing VLAN . Y ou can add/de lete port members for a VLAN from any unit in the stack as a tag g ed or untag ged member . Or you can prev ent a por t from being automati cally added to a VLAN by the GVRP proto[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-60 Parameter Description VID The ID for the V LAN currently di splayed. Range: 1-2048 VLAN Name A user-specif ied symbolic name for th is VLAN. String length: Up to 8 alphanumeric characters Status Sets the curren t editing status for th is VLAN as: Not in Service, Destroy or Active. Unit Stac k unit[...]

C ONFIGURING THE S WITCH 2-61 F or example, the following screen displays settings for VLAN 2, which includes tag g ed por ts 1-6, and forbidde n por t 8. Notes : 1. T o allo w this switch to part icipate in a VLAN g roup that extends beyond this switc h, yo u m ust add the VLA N ID for the require d exter nal g roups . 2. If a remo ved port is no [...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-62 802.1Q VLAN Port Configuration Use this screen to configure port -specific settin gs for IEEE 802.1Q VLAN features . 802.1Q VLAN Port Co nfiguration : Unit 1 Port 1 - 12 ======================== ======= Port PVID Acce ptable Ingress GVRP GVRP Failed GVRP Last Frame Type Filtering Status Registrati[...]

C ONFIGURING THE S WITCH 2-63 GVRP Status * Enables or disables GVRP fo r this port. When disabled, any GVRP pac kets received on thi s port will be discarded and no GVRP registrations will be propagated from ot her ports. Note that GVRP must be enabled for th e switch before this setting can take effect . (See Devi ce Control Menu / Extended Br id[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-64 Port Security Configuration Use the P ort Security Configuration screen to enable and configure port security for the switch. P or t Security allows y ou to configure each port with a list of MA C addresses of device s that are author ized to access the netw ork through that port. Port Security Co[...]

C ONFIGURING THE S WITCH 2-65 Mode Port security can be set to three sta tes; Static, Di sable, or Learning. When set to Stat ic, the switch will drop pac kets from the port if the so urce MAC address does no t match one of the addresses in the MAC Address list. If set to Learning, the switch will add the source MAC address of all packets received [...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-66 Monitoring the Switch The Network Monitor Men u provides access to por t statistics , RMON statistics , IP multicast addresses , and the static address table . Eac h of the screens provided by these menus is described in the following sections . Network Monitor Menu ==================== Port Stati[...]

M ONITORING THE S WITCH 2-67 Displaying Port Statistics P ort Statistics displa y key statistics from the Ether net-like MIB for each por t. Er ror statistics on the traffic pass ing through each port are displayed. This infor mation can be used to id entify potential problems with the switch (such as a faulty port or un usually heavy loading). The[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-68 SQE Test Errors* A count of time s that the SQE TEST ERROR message is generat ed by the P LS sublayer. Deferre d Transmissions* A count of frames for which the first tran smission attempt on a particular inte rface is delayed b ecause the medium was busy. Late Collisi ons The number of times that [...]

M ONITORING THE S WITCH 2-69 Displaying RMON Statistics Use the RMON Statistics sc reen to display key statistics for eac h por t from RMON g roup 1. (RMON groups 2, 3 and 9 can only be accessed using SNMP management software such as EliteView .) The following screen displays the ov erall statistics on tra ffic passing through eac h por t. RMON sta[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-70 Multicast Frames The total number of go od frames rece ived that were directed to this multicast address. CRC/Alignment Errors The number of CRC/alignment errors (FCS or alignment errors). Undersi ze Frames The to tal number of frames rec eived that were less than 64 octets long (exc luding framin[...]

M ONITORING THE S WITCH 2-71 Displaying the Unicast Address Table The Address T able contains the MA C addresses and VLAN identifier associated with ea ch port (that is, the source por t associated with t he address and VLAN) , sor ted by MA C ad dress or VLA N ID . Y ou can se arch for a specific address , clear the en tire address table, or infor[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-72 Unit Switch unit in the stack (1~6). Port The port whose address table includes this MAC address. Status Indicates address status as: D: Dynamically learned, or P: Fixed permanent ly by SNMP network management software. Sorted/Cleared by Selects the primary key used to sort/clear the table: MAC or[...]

M ONITORING THE S WITCH 2-73 Displaying the IP Multicast Registration Table Use the IP Multicast Registration T able to display all the m ulticast g roups activ e on this switch, including multicast IP addresses and the cor responding VLAN ID . IP Multicast Registration T able =========================== ==== VID Multicast IP Unit Multicast Group P[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-74 Configuring Static Unicast Addresses Use the Static Unicast Address T able Configuration screen to man ually configure host MA C addresses in the unic ast table . Y ou can use this screen to associate a MA C address with a specific VLAN ID and switch port as sho wn below . Static Unicast Addre ss [...]

M ONITORING THE S WITCH 2-75 Status The status for an entry can be set to: Permanen t This ent ry is currently i n use and will remain so after the next reset of the s witch. DeleteOnRe set This entry is currently in us e and will remain so until the next reset. Invalid Removes the corres ponding entry. DeleteOnTimeOut This entr y is currently in u[...]

U SING THE S YSTEM C ONFIGURATION P RO G R A M 2-76 Resetting the System Use the R estar t command und er the Main Men u to reset the manag eme nt ag ent. The reset screen includes options as sho wn in the following figure and table. Logging Off the System Use the Exit command under the Main Menu to exit the configuration prog ram and ter minate co[...]

3-1 C HAPTER 3 W EB -B ASED M ANAGEMENT Web-Based Configuration and Monitoring As well as the men u-driv en system configuration prog ram, the agent module provides an embedded HTTP W eb agent. T his ag ent can be accessed by any computer on the netw ork using a standard W eb browser (Inter net Explorer 4.0 or abov e, or Netscape Navigator 4.0 or a[...]

W EB -B ASED M ANAGEMENT 3-2 Navigating the Web Browser Interface T o access the W eb-bro wser interfa ce you m ust first ent er a user name and passw ord. T he default user name is “admin, ” with no passw ord. The administrator has R ead/W rite access to all configurati on parameters and statistics . Home Page When your W eb browser connects w[...]

N AVIGATING THE W EB B RO W S E R I NTERFACE 3-3 If this is y our first time t o access th e management ag ent, you should define a new Administrator passw ord, record it and put it in a safe place . From the Mai n Menu, select Security and enter a new passwo rd for the Administrator . Note that passw ords can consist of up to 11 alphanumeric char [...]

W EB -B ASED M ANAGEMENT 3-4 Panel Displ ay Th e W eb ag ent displays an imag e of the switch’ s ports , showing port links and activity . Clicking on the image of a por t displays statistics and configuration infor mation for the por t. Clicking on the image of the serial por t (labeled “Mgmt”) dis plays the Co nsole Configuration screen. Cl[...]

P ANEL D IS PLAY 3-5 Console Configuration If you are ha ving difficulties making an out-of-band console connection to the ser ial port on the agent module, you ca n display or modify the cur rent settings for the serial por t through the W eb agent. Click on the serial p or t icon in the switch image to display or configure these settings , as sho[...]

W EB -B ASED M ANAGEMENT 3-6 Data bits 8 bits Sets the data bits of the RS-232 port. Options : 7, 8 Stop bits 1 bit Sets the stop bits of the RS-232 port. Options : 1, 2 Parity none Sets the parity of the RS-232 port. Options : no ne/odd/even Auto-Refres h Time 5 seconds Sets th e interval before a consol e session will auto refresh the c onsole in[...]

M AIN M ENU 3-7 Main Menu Using the on-board W eb agent, you can define system pa rameters , manage and control the switch, the connected stac k and all its por ts , or monitor netw ork conditions . The following tabl e brief ly describe s the selections av ailable from this program. Menu Description System Provides ba sic syste m descript ion, inc[...]

W EB -B ASED M ANAGEMENT 3-8 System Information Use the System Infor mation screen to display descriptiv e infor mation about the switc h, or for quick syst em id entification as sho wn in th e following figure and table . Parameter Description System N ame* Name assigned to the switch system. IP Address I P address of the agent you are managing. T[...]

S WITCH I NFOR MATION 3-9 Switch Information Use the Switc h Infor mation screen to displa y hardware/fir mware v ersion numbers for the main board, as well as the pow er status and modules plug g ed into the system. Main Board Parameter Description Serial Number Serial number of th e main board. Number of Ports Number of ports (incl uding modules)[...]

W EB -B ASED M ANAGEMENT 3-10 Agent Module Expansion Slot Parameter Description Hardware Version Har dware ve rs ion of the agent module . POST ROM Version Agent module’s Power-On Self -Test version. Firmware Version Agent module’s firmware version. Role Shows th at the agent modu le is o perating as Master. Parameter Description Expansion Slot[...]

IP C ONFIGURATION 3-11 IP Configuration Use the IP Configuration screen to se t the bootup option, configure the IP address for the on-board management ag ent, or set the number or concur rent T elnet sessions allow ed. The screen shown belo w is described in the following table . Parameter Default Description IP State USER-CONFIG Specifies whethe [...]

W EB -B ASED M ANAGEMENT 3-12 Subnet Mask 255.2 55.0.0 Subnet mask of the s witch you have selected. This mask ide ntifies the host address bits used for routing to specific subn ets. Gateway IP Gateway used to pa ss trap messages from the switch to the management s tation. Note that the gateway must be define d if the management statio n is locate[...]

SNMP C ONFIGURATION 3-13 SNMP Configuration Use the SNMP Configuration screen to di splay and modif y parameters for the Si mple Netw ork Management Pr otocol (SNMP). The stack should includes an SNMP ag ent module which monitors the status of its hardware , as well as the traffic passing through its por ts . A computer attac hed to the networ k, c[...]

W EB -B ASED M ANAGEMENT 3-14 Trap Managers The following figure and table desc ribe how to specify management stations that will receiv e authentica tion failure message s or other trap messages from the switc h. Up to 5 trap manag ers may be entered. Parameter Description Trap Manager Capability Up to 5 trap managers may be used. Trap Manager IP [...]

S ECURITY C ONFIGURATION 3-15 Security Configuration Use the Security Configuration screen to restrict mana g ement access based on a specified passw ord. The Admi nistrator has write access for parameters gov er ning the SNMP agen t. Y ou should therefore assign a passw ord to the Administrator as soon as possible , and store it in a safe place . [...]

W EB -B ASED M ANAGEMENT 3-16 Firmware Upgrade Options Y ou can upg rade sys tem fir mware via a W eb bro wser , a TFTP ser ver , or a direct connection to the console port. Web Upload Management Us e th e W eb U pl o ad M an a g e me n t m e nu t o lo a d s o ft wa re u pd a te s in to t h e switch. The upload file must be an SMC6924MT binar y fil[...]

F IR MWARE U PGRADE O PTIONS 3-17 TFTP Download Management Use the TFTP Download Manag ement m enu to load so ftware updates into the switc h. T he download file s hould be an SMC6924MT binar y file from SMC; otherwise the ag ent will not accept it. T he succe ss of the download operation de pends on the acce ssibility of the TFTP ser ver and the q[...]

W EB -B ASED M ANAGEMENT 3-18 Configuration Save and Restore Use the Co nfigure screen to sav e the sw itc h configuration settings to a fi le on a TFTP ser ver . The file can be late r downloaded to the switch to restore the switc h’ s settings . The su ccess of the operation de pends on the accessibility of the TFTP ser ver and th e quality of [...]

C ONFIGURATION S AVE AND R ESTOR E 3-19 Configuration Download Management Use the Configuration Download Management to restore s witch configuration settings from a file on a TFTP sever . Parameters sho wn on this sc reen are indi cated in the f ollowin g figure an d table . Parameter Description Server IP Address IP addr ess of the TFTP server. Fi[...]

W EB -B ASED M ANAGEMENT 3-20 Address Table Configuration The Address T able contains the unicast MA C addresses and VLAN identifi er associated with each por t (that is , the source port), sor ted b y MA C ad dress or VLAN . Y ou can also c lear the entir e address tabl e, or infor m ation associ ated with a spec ific address; or set the aging tim[...]

S PANNING T RE E A LGORITHM (STA) 3-21 Spanning Tree Algorithm (STA) The Spanning T ree Algorithm can be used to detect and disable netw ork loops , and to pro vide backup links between switches , bridges or routers . This allows the switch to interact with other bridging devices (that is, ST A-compliant switch, bridg e or router ) in your netw ork[...]

W EB -B ASED M ANAGEMENT 3-22 Spanning Tree The parameters shown in the followi ng figure and table describe the cur rent bridge STA Infor mation. Parameter Description Spanning Tree State Shows if the switch is enabled to participate in an STA-compli ant network. Bridge ID A unique identifier for thi s bridge, consisting of bridge priority plus MA[...]

S PANNING T RE E A LGORITHM (STA) 3-23 Ports The parameters shown in the follo wing figure and table are for port STA Infor mation. Parameter Description Port Status Displays the curren t state of this port within the spanning tree: No Link No link has been estab lished on thi s port. Disabled Port has been disabl ed by the user or has failed diagn[...]

W EB -B ASED M ANAGEMENT 3-24 The rules defin ing port status are: • A port on a network segmen t with no other STA c ompliant bridging device is always forwarding. • If two p orts of a switch are connected to the same segment and there is no other STA device attached to this segment, the port with the smaller ID forwards packets and the other [...]

S PANNING T RE E A LGORITHM (STA) 3-25 Spanning Tree Configuration The following figures and tables de scribe Bridg e ST A configuration. Switch When the Switch Becomes Root Parameter Default Des cription Usage Enabled Enable this parameter to participat e in an STA compliant net work. Priority 32,768 Device priority is used in selecting the ro ot [...]

W EB -B ASED M ANAGEMENT 3-26 Max (Message) Age 20 The maximum time (in seconds) a device can wait without rece iving a configuratio n message before attempting to reconfigure. All device ports (except for designated ports) sh ould receive configuration messages at regular int ervals. Any port that ages out STA information (provided i n the last co[...]

S PANNING T RE E A LGORITHM (STA) 3-27 STA Port Configuration The following figure and table descri be STA configuration for por ts or modules . Parameter Default Description Fast Forwarding Mode (All Ports) Enabled See “Fast Forward” in this table. Priority 128 Define s the priority fo r the use of a port in the STA a l g o r i t h m . I f t h[...]

W EB -B ASED M ANAGEMENT 3-28 Path Cost 100/19/4 This parameter is used by the STA algorithm to determine the be st path between devices. Theref ore, lower values should be ass igned to ports attached to faster media, and higher valu es assigned to po rts with slower media. The default and recommended range is: Standard Ethernet: 100 (50~60 0) Fast[...]

C ONFIGURING B RIDGE MIB E XTENSIONS 3-29 Configuring Bridge MIB Extensions The Bridge MIB includes extensions for managed devices that suppor t T raffic Classes and Vir tual LANs . T o display and configure these extensions , use the Bridg e Extension screen as sho wn below: Bridge Capability Parameter Description Extended Multicast Filteri ng Ser[...]

W EB -B ASED M ANAGEMENT 3-30 Bridge Settings Parameter Description Traffic Cla sses* Multiple traffic c lasses are suppo rted by this switch as indicated unde r Bridge Capabilities. Howeve r, you can disable th is function by setti ng this para meter to False. GMRP* GARP Multicast Re gistration Protocol (GMRP) allows network devices to register en[...]

P RIORITY 3-31 Priority IEEE 802.1p defines up to 8 separate traffic classes . This switch supports Quality of Ser vice (QoS) by using two pr iority queues , with W eighted F air Queuing for each port. Y ou can use th e Priority Men u to configure the default priority for each port, or to displa y the mappi ng for the traffi c classes . Port Priori[...]

W EB -B ASED M ANAGEMENT 3-32 Port Traffic Class Information This switch provides two priority lev els with weighted fair queuing for por t eg ress . This means that any fr ames with a default or user priority from 0~3 are sent to the low priority queue “0” while those from 4~7 are sent to the high priority queue “1” as sho wn in the follow[...]

VLAN M ANAGEMENT 3-33 VLAN Management Use the VLAN Manag ement screen to define which VLAN has management access to the switch. P a rameters sho wn on this screen are indicated in the following figure and table: Parameter Default Description CPU Jo in VLAN All Select ALL to give all VLANs acc ess to switch management, or ONE to res trict access to [...]

W EB -B ASED M ANAGEMENT 3-34 Configuring Virtual LANs Y ou can use the VLAN configuration menu to assign any por t on the switch to any of up to 256 LAN g roups . In conv entional netw orks with routers , broadcast traffic is split up in to separate domains . Switches do not inherently support broadcast domains . This can lead to broadcast stor ms[...]

C ONFIGURING V IRTUAL LAN S 3-35 VLAN Current Table This screen sho ws the cur rent port members of each VLA N and whether or not the port suppor ts VLAN tag ging . P or ts assigned to a large VLAN g roup that crosses sev eral switches should use VLAN tag ging . Ho wev er, if you just want to create a small port- based VLAN for one or tw o switches[...]

W EB -B ASED M ANAGEMENT 3-36 VLAN Static List Use this sc reen to crea te or remo ve VLA N g roups . Egress Port s Shows the p orts which have been adde d to the displayed VLAN gr oup. Untagged Ports Shows the untagged VLAN po rt members. Parameter Description Current Lists all t he current V LAN groups create d for this sys tem. Up to 256 VLAN gr[...]

C ONFIGURING V IRTUAL LAN S 3-37 VLAN Static Table Use this screen to modify the settin gs for an existing VLAN . Y ou can add/ delete por t members for a VLAN from any unit in the stac k. (Note that VLAN 1 is fix ed as an untag g ed VLAN containing all ports in the stack, and cannot be modified via this screen.) The switch suppor ts an ov erlappin[...]

W EB -B ASED M ANAGEMENT 3-38 Use the menu shown below to prev ent a port from being dynamically added to the displa yed VLAN g roup through GVRP . Parameter Description Egress Ports Adds ports to the specified VL AN. Parameter Description Forbidd en Egre ss Ports Prevents a port fro m being automatically added to this VLAN via GVRP. Not e that GVR[...]

C ONFIGURING V IRTUAL LAN S 3-39 Use the menu shown below to as sign por ts to the specified VLAN group as an IEEE 802.1Q tag ged or untag g ed por t. Assign ports as tag g ed if they are connected to 802.1Q VLAN compliant devices , or untag g ed if they are connected to VLAN -unaw are devices . Note: If a removed port is no longer assi gned to any[...]

W EB -B ASED M ANAGEMENT 3-40 VLAN Static Membership by Port Use the screen sho wn below to assign VLAN groups to the selected port. T o perfor m detailed por t configurat ion for a specific VLAN , use the VLAN Static T a ble (page 3-37). Parameter Description Port Number P ort number on the sw itch selected fro m the upper display panel. Add/Remov[...]

C ONFIGURING V IRTUAL LAN S 3-41 VLAN Port Configuration Use this screen to configure port -specific settin gs for IEEE 802.1Q VLAN features . Parameter Description PVID The VLAN ID assigned to untagg ed frames re ceived on thi s port. Use the PVID to assign ports to the same untagged VLAN. Acceptable Frame Type This sw itch accepts “Al l” fram[...]

W EB -B ASED M ANAGEMENT 3-42 IGMP Multicast Filtering Multicasting is used to support real -time applications such as video conferencing or streamin g audio . A multicast ser ver does not ha ve to establish a separate connect ion with eac h client. It merely broadcasts its ser vice to the networ k, and any hosts which w ant to receiv e the m ultic[...]

IGMP M ULTICAST F ILTERING 3-43 Configuring IGMP This protocol allows a host to infor m its loc al switc h/router that it wants to receiv e transmissions addressed to a specific multicas t address g roup . Use the IGMP Configuration screen to set key parame ters for multicast filtering as shown below . Note: The defau lt values ar e indicated in th[...]

W EB -B ASED M ANAGEMENT 3-44 IP Multicast Registration Table Use the IP Multicast Registration T able to display all the m ulticast g roups activ e on this switch, including multicast IP addresses and the cor responding VLAN ID . Parameter Description VLAN ID VLAN ID ass igned to this multicast grou p. Multicast IP Address IP address for specific [...]

P ORT M ENUS 3-45 Port Menus Port Information The P or t Infor mation screen displa ys the port status , link state , the comm unication spe ed and duplex mode, as well as the flow c ontrol in use . T o chang e any of the por t settings , use the P ort Configuration menu. T he parameters are sho wn in the following figure and table . Parameter Desc[...]

W EB -B ASED M ANAGEMENT 3-46 Port Configuration Use the P or t Configuration menu to configure any port on the switch. Parameter Default Description Flow Control Mode (on all ports) Disabled See “Flow Control Status” in this table. Admin Status Enable Allows you to disable a port due to abnormal behavior, and t hen re-enable it aft er the p ro[...]

P ORT M ENUS 3-47 Note: MT-RJ ports operate at 100 Mbps and support full- and half-duplex mode. 100BASE-FX module por ts operate at 100 Mbps, full-duplex only. 1000BASE-SX an d 1000BASE-LX ports are fixed at 1000 Mbps, but auto-negotiate duplex mode and flow control. 1000BASE-T ports auto-negotiate s peed (1000/100/ 10 Mbps), duplex mode and flow c[...]

W EB -B ASED M ANAGEMENT 3-48 Port Broadcast Stor m Protect Configuration Use the P ort Broadcast Stor m Protect Configuration screen to configure broadcast stor m control for any por t on the switch. Parameter Def ault Description Broadcast Storm Protect Mode Enabled Allows you to enable/di sable broadcast storm control fo r all ports on the swit [...]

P ORT M ENUS 3-49 Port Security Configuration Use the P ort Security Configuration screen to enable and configure port security for the switch. P or t Security allows y ou to configure each port with a list of MA C addresses of device s that are authorized to access the netw ork through that port. Parameter Description Port Nu mber The po rt number[...]

W EB -B ASED M ANAGEMENT 3-50 Using a Port Mirror for Analysis Y ou can mir ror traffic from any source por t to a targ et por t for real-time analysis . Y ou can then attach a logic analyzer or RMON probe to the target por t and study the traffic c rossing the source por t in a comple tely unobtr usiv e manner . When mir roring por t traffic , not[...]

P ORT T RUN K C ONFIGURATION 3-51 Port Trunk Configuration P ort tr unks can be used to increase the bandwidth of a netw ork connection or to ensure fault recov er y . Y ou can configure up fi ve tr unk connections (combining 2~4 por ts into a fat pipe) betw een any tw o standalone SMC6924MT switches , or up t o 12 for an entire stack. How ever , b[...]

W EB -B ASED M ANAGEMENT 3-52 Use the P ort T r unking Configuration screen to set up port tr unks as sho wn below: Parameter Description Trunk A uni que identifi er for this tr unk. You can configure up to five trunks per switch. Status Enables or disabl es the displaye d trunk. Member List You c an create up to 12 trunks for th e entire stac k by[...]

P ORT T RUN K C ONFIGURATION 3-53 The MT -RJ por ts used for one s ide of a tr unk must all be on the same inter nal switch c hip . The por t g roups per mitted include: The 10 0B ASE-FX SC-type fiber ports used for one side of a tr unk must all be on the same module . How ever , the 1000B ASE-X ports used for one side of a tr unk may be on any swi[...]

W EB -B ASED M ANAGEMENT 3-54 Port Statistics Use the P or t Statist ics men u to displa y Etherl ike or RM ON statisti cs for any por t on the switch. The statistics displayed are indicated in the following figure and table . Etherlike Statistics Etherlike Statistics display key statis tics from the Ethernet-li ke MIB for each port. Er ror statist[...]

P OR T S TATISTICS 3-55 Note: Statisti cs are automatical ly refreshed every 60 seconds. Excessive Collisions* The number of fram es for which transmission failed due to excessive collisio ns. Internal Mac Transmit Errors* The number of frames for which transmission faile d due to an internal MAC subl ayer transmit error. Carrier Sense Errors* The [...]

W EB -B ASED M ANAGEMENT 3-56 RMON Statistics RMON Statistics display k e y s t a t i s t i c s f o r e a c h p o r t o r m e d i a m o d u l e f r o m RMON g roup 1. (RMON groups 2, 3 and 9 can only be accessed using SNMP management software such as EliteView .) The following screen displays o verall statistics on traffi c passing through each por[...]

P OR T S TATISTICS 3-57 Note: Statisti cs are automatical ly refreshed every 60 seconds. Oversize Frame s The total n umber of frame s received that were longer than 1518 octets (excluding fram ing bits, b ut including FCS octets) and were othe rwise well formed. Fragments The total number of frames received th at were less than 64 octets in lengt [...]

W EB -B ASED M ANAGEMENT 3-58[...]

4-1 C HAPTER 4 A DVANCED T OPICS This Tig erStack 100 supp or ts Layer 2 switching and other adv anced features , which are described in this chapter . Layer 2 Switching When a frame enters a port, its destination MA C address is chec ked in the address database to see whic h port le ads to this destination. If the destina tion addre ss belong s to[...]

A DV AN CE D T OPICS 4-2 Spanning Tree Alg orithm The Spanning T ree Alg orithm (that is , the ST A configuration algorithm as outlined in IEEE 802.1D) can be used to detect and disable netw ork loops , and to provide link back up . T his allows the switch to interact with other bridging devices (including ST A-compliant switc hes, bridges or route[...]

V IRTUAL LAN S 4-3 The following figure giv es an illu stration of how the Spanning T ree Alg orithm assigns brid ging device ports . Virtual LANs Switches do not inherently support br oadcast domains , which can lead to broadcast stor ms in larg e netw orks th at handle a lot of IPX or NetBeui traffic . In conv entional netw orks with routers , br[...]

A DV AN CE D T OPICS 4-4 addresses or IP subnets . VLANs inherently provide a high lev el of netw ork security , since traffic must pass throug h a Layer 3 switc h or a router to reach a different VLAN . This switch supports the following VLAN features: • Up to 256 VLANs based on the IEEE 802.1Q standard • Distributed VLAN learning across mu lt[...]

V IRTUAL LAN S 4-5 frame to the por t’ s default VLAN if the frame is untag ged (deter mined b y the PVID of the recei ving por t), or ma ps it fo r output to the broadcast domain assoc iated with the fr ame’s VL AN tag. Port Overlapping P ort ov erlapping can be used to allo w access to commonly shared netw ork resources among dif ferent VLAN [...]

A DV AN CE D T OPICS 4-6 Connecting VLAN Groups The switch supports intra-VLAN communication using wire-speed switching . Howev er , if you ha ve devices in separate VLANs that must communicate, and it is not practical to includ e these devices in a common VLAN , then the VLANs ca n be connected via a Layer 3 switch (such as the SMC6724L3) or a rou[...]

C LASS - OF -S ER VICE (C O S) S UPPOR T 4-7 infor mation, and configures multicas t filters accordingly . IGMP Snooping generates no additional network traffic , allowing you to significantly reduce the multicast traffic passing through your switch. IGMP Protocol The Inter net Group Management Prot ocol (IGMP) r uns between hosts and their immedia[...]

A DV AN CE D T OPICS 4-8 Priority assignment to a pack et in the Tig erStack 100 can be accomplished in any of the follo wing wa ys: • Priority can be explicitly assign ed by end stations which have applicat ions that requ ire a higher priority than best-effort. This switch utilizes the IEEE 802.1p and 802.1Q ta g structure to decide priority ass[...]

SNMP M ANAGEMENT S OFTWAR E 4-9 SNMP Management Software SNMP (Simple Netw ork Manag ement Protocol) is a comm unication protocol designed specific ally for managing devices or other elements on a netw ork. Network equipment commonl y managed with SNM P includes hubs , switches , bridg es , routers and host computers . SNMP is typically used to con[...]

A DV AN CE D T OPICS 4-10 This sw itch pro vides suppor t for mini-RMON which contains the four key g roups required for basic remote monitoring . T hese g roups include: Statistics: Includes all the tools needed to monitor your netw ork for common er rors and o ver all traffic ra tes . Infor mation is provided on bandwidth utilization, peak utiliz[...]

A-1 A PPENDI X A T ROUBLESHOOTING Troubleshooting Chart Troubleshooting Chart Symptom Action Cannot conn ect usin g Telnet, Web browser, or SNMP software • Be sure to have configur ed the agent with a valid IP address, subn et mask and default gateway. • Check that you have a valid network co nnection to the switch and that the port yo u are us[...]

T R OUBLESHOOTING A-2 Upgrading Firmware via the Serial Port Y ou can upg rade system f ir mware b y connecting your computer to the serial por t on the switc h, and using a console interface package that suppor ts the XModem protocol. (See “Required Connections” on pag e 1-2.) 1. Restart the system by using the Re start System command or reset[...]

U PGRADING F IR MWAR E VIA THE S ERIAL P OR T A-3 3. Chang e your baud rate to 115200 bps , and press Enter to enable download mode . From the ter mi nal em ulation prog ram, select the file you w ant to downloa d, set the protocol to X Modem, and then initialize downloading . Notes: 1. If you use Windows HyperT erminal, disconnect and reconnect to[...]

T R OUBLESHOOTING A-4[...]

B-1 A PPENDIX B P IN A SSIGNMENTS Console Port Pin Assignments The DB-9 serial por t on the switch’ s rear panel is used to connect to the switch for out-of -band console conf iguration. T he on-board menu-driv en configuration prog ram can be accesse d from a ter minal, a PC r unning a ter minal emulation prog ram, or from a remote location via [...]

P IN A SSIGNMENTS B-2 Console Port to 9-Pin COM Port on PC Console Port to 25-Pin DTE Port on PC Switch’s 9-Pin Serial Port CCITT Signal PC’s 9-Pin COM Port 2 RXD <---------RXD ------------ 3 TxD 3 TXD -----------TXD ----------> 2 RxD 5 SGND -----------SGND ---------- 5 SGND No other pin s are used. Switch’s 9-Pin Serial Port Null Modem[...]

Glossary-1 G LOSSARY Bandwidth Utilization Th e percentage of packets receiv ed ov er time as com pared to ov erall bandwidth. BOOTP Boot protocol used to load the opera ting system for devices connected to the ne twork. GARP VLAN Registrati on Protocol (GVRP) Defines a wa y for switches to exc hang e VLAN infor mation in order to register nece ssa[...]

G LOSSAR Y Glossary-2 IEEE 802.1D Specifies a general method for the operation of MA C bridges , including the Spanning T r ee Protocol. IEEE 802.1Q VLAN T ag ging defines Ethernet frame tags whic h car r y VLAN infor mation. It allows switches to a ssign end-stations to different vir tual LANs , and defines a standard wa y for VLANs to communica t[...]

G LOSSAR Y Glossary-3 Port Trunk Defines netw ork link ag g reg ation and tr unking standards whic h specify how to create a single high-speed logical link that combines several low er-speed physical links . Remote Monitoring (RMON ) RMON provides comprehens iv e netw ork monitoring capabilities . It eliminates the polling required in standard SNMP[...]

G LOSSAR Y Glossary-4 Virtual LAN (VLAN) A Virtual LAN is a coll ection of netw ork nodes that share the same collision domain regardless of their physical location or connection point in the network. A VLAN ser v es as a logical w orkg roup with no ph ysical bar riers , allo wing users to share in for m ation and resources as though located on the[...]

Index-1 Numerics 802.1p port p riority 3-31 , 4-7 802.1Q VLAN s 2-56 , 3-34 , 4-3 802.3x flo w control 2-31 , 3-47 A analyzer port configuration 2-44 , 3-50 B baud rate configuratio n 2-17 , 3-5 BOOTP enabling 2-14 , 3-11 for IP configuration 1-5 BPDU 4-2 Bridge Protoc ol Data Units See BPDU bridge STA informati on 2-39 , 3-21 Broadcast Storm Contr[...]

I NDEX Index-2 Internet Gr oup Management P rotocol See IGMP IP conf iguration 2-13 , 3-11 L Layer 2 switching 4-1 link aggregation 2-45 , 3-51 , 4-8 login configuration 2-22 , 3-15 console int erface 2-1 M MAC address of syste m 2-12 MAC address table, displaying 2-71 , 3-20 management options 1-1 software, S NMP 4-9 mirror po rt configuratio n 2-[...]

I NDEX Index-3 switch configurati on 2-28 switch ing, Layer 2 4-1 system information 2-7 , 3-8 T tagged ports 4-4 VLANs 4-5 TFTP downloads 2-24 , 3-17 time-ou t, console 2-18 , 3-5 traffic classes configuration 2-53 , 3-31 , 4-7 trap managers, configuring 2-21 , 3-14 trouble shooting A-1 trunk port confi guration 2-45 , 3-51 U unicast address table[...]

I NDEX Index-4[...]

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