SMC Networks 1000BASE-X manuel d'utilisation

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 ve port trunks per switch ◆ Port mirroring for non-intrusi v e analysis ◆ QoS sup[...]

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

Infor mation fur nished by SMC Netw orks, Inc . (SMC) is believ ed to be accurate and reliable. Ho wev er, no re sponsibility is assumed by SMC for its use, nor for any infringements of patents or o ther rights of third parties which may result from its use . No license is g ranted by implication or otherwise under any patent or patent ri ghts of S[...]

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 nor mal use and ser vice, for the applicable warranty ter m. All SMC products car r y a standard 90-day limited warranty from the date of purchase from SMC or its Authoriz ed Reselle[...]

L IMITED W AR RANTY ii LIABILITY IN CONNECTION 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 EXAMINA TION DISCLOSE THE ALLEGED DEFECT IN THE PRODUCT DOES NOT EXIST OR W AS CAUSED BY CUSTOMER’S OR ANY THIRD PERSON ’S MISUSE, NEGLECT , IMPROPER INSTALLA TION OR[...]

iii T ABLE OF C ONTENTS 1 Switch Management . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Configurati on Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Factory Defau lts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Required Connections . . . . . . [...]

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

T ABLE OF C ONTENTS v Expansion Slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10 IP Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11 SNMP Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13 SNMP Communi ty . . . . [...]

T ABLE OF C ONTENTS vi Configuring IGMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-43 IP Multicast Reg istration Table . . . . . . . . . . . . . . . . . . . . . . . . . 3-44 Port Menu s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-45 Port Information . . . . . . . . . .[...]

T ABLE OF C ONTENTS vii B Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1 Console Port Pin A ssignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1 DB-9 Port Pin Assignme nts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B -1 Console Port to 9-Pin CO M Port on PC . . . . . . . . . . [...]

T ABLE OF C ONTENTS viii[...]

1-1 C HAPTER 1 S WITCH M ANAGEMENT Configuration Options F or advanced manag ement capability , the Tige rStack 100 management agent provides a menu-dri ven system configuration program. This prog ram can be accessed by a direct or modem connection to the serial port on the rear panel (out-of-band), or by a T elnet connection over the network (in-b[...]

S WITCH M ANAGEMENT 1-2 Required Connections Console Port (Out-of-Band) Connections Attach a VT100 compatible terminal or a PC r unning a ter minal emulation prog ram to the serial port on the swit ch’ s rear panel. Use the null-modem cable provided with this package, or use a n ull modem connection that complies with the wiring assignments sh o [...]

R EQUIR ED C ONNECTIONS 1-3 In-Band Connections Prior to accessing the Network Ma nagement Module via a network 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 conf[...]

S WITCH M ANAGEMENT 1-4 Factory Defaults The default settings for switch configuration parameters . Each 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 <no[...]

F ACTOR Y D EFAULTS 1-5 Path Cost 4 - 1000Mbps ports 19 - 100Mbps ports 100 - 10Mbps ports Port Priority 128 Spanning Tre e Protocol Enabled Spanning Tree Fast Forwarding 10/100 Mbps ports Enabled Virtual LANs Acceptable VL AN Frame Type All Configurable PVID Tagging Yes Untagged VLAN Grou p Assignment 1 VLAN Ingress Filtering False VLAN Learning S[...]

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 port or a T elnet connection is established, the login screen for the on-board configuration prog ram appears as shown below . If this is y our first time t o log in to the configuration program, then the default user names are “admin”[...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-2 Y ou should define a new administrator password, record it and put it in a safe place. Select Console Login Conf iguration from the Management Setup Menu and enter a new password for the administrator . Note that passwords can consist of up to 11 alphanumeric characters and are not case sensitiv e. N[...]

M AIN M ENU 2-3 Main Menu With the system configuration progra m you can define sy stem paramete rs , manage and control the switch, the c onnected stack and all its ports , or monitor network conditions . The figure below of the Main Menu and the following table briefly describe the se lections av ailable from this prog ram. Note: Options for the [...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-4 Management Setup Menu Network Configuration Includes IP setup, Ping fac ility, HTTP (Web agent) setup, Te lnet conf igur ation, and MAC address. Serial Port Configuration Sets communic ation parameters f o r the serial port, including manag ement mode, baud rate , console time-out, and screen da ta r[...]

M AIN M ENU 2-5 BStorm Control Configuration Allows you to enable/disable broadc ast storm control on a per-po rt basis and set the packet-per-s econd threshold. Extended Bridge Configuration Displays/configure s extended bridge capabiliti es provided by this switch. 802.1P Configu ration Configures default po rt priorities and queue assignments. 8[...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-6 Static Unicast Address Table Configuration Used to manually configure host MAC addre sses in the unicast table. Static Multicast Address Table Configuration* Used to manually configure host MAC addre sses in the multicast table. Restart System Restarts system with op tions to use POST, or to retain f[...]

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

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-8 Displaying System Information Use the System Infor mation screen to display descriptive infor mation about the switch, or for quic k syst em identi fication as sho wn in the following figure and table . System Information ================== System Description : TigerStack 100 SMC 6924MT System Object[...]

S YSTEM I NFOR MATION M ENU 2-9 Displaying Switch Version Information Use the Switch Information screen to display hardware/firmware version numbers for th e main board, as well as the power status . Switch Information : Unit 1 ================== Main Board Hardware Version : V5.0 Firmware Version : V1.21 Serial Number : 00-CB-00-00-00-00 Port Numb[...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-10 Expansion Slot 2 Shows module t ype if inserted: 100BASE-FX (MMF or SMF), 1000BASE-SX, 1000BASE-LX, 1000BASE-T, or Stacking. Agent Module Hardware Version Hardware ve rsion of the agent mo dule. POST ROM Version Power-On Self-Test versio n number. Firmware Version Firmware ve rsion of the ag ent mod[...]

M ANAGEMENT S ETUP M ENU 2-11 Management Setup Menu After initially log ging onto the sy stem, adjust the communication 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 (Con[...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 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, enable the on-board W eb agent, or to set the number of conc urrent T elnet sessions allowed. The screen shown belo w is described in the fol[...]

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 . The screen shown below is described in the following table . Network Configuration : IP Configuration ======================================== Interface Type : Ethernet IP Address : 10.1.113.29 Subne[...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-14 Default Gateway Gateway used to pass tra p messages from the system’s agen t to the management station . Note that the gateway must be defined if the management statio n is located in a different IP segment. The default value is null. IP State Specifies whether IP func tionality is enabled via man[...]

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 shown belo w is described in the follo wing table. Network Configuration : IP Connectivit y Test (Ping) ====================================== ============= IP Address : Test Times : 1 Interval :[...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 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 provide HTTP ser vice. The screen shown belo w is described in the follo wing table. Network Configuration : HTTP Configuration =====================================[...]

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 “Requi red Connections” on page 1-2.) The communication parameters fo r this por t can be accessed from th[...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 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 fro m the attached device after this interval, th e current session is automaticall y closed. Range : 0 - 100 minu tes; where 0 indicates disabled Auto Refresh 5 seconds Sets the int[...]

M ANAGEMENT S ETUP M ENU 2-19 Assigning SNMP Parameters Use the SNMP Configuration screen to displa y and modify parameters for the Simple Network Management Prot ocol (SNMP). The switch includes an on-board SNMP agent which monitors the status of its hardw are, as well as the traffic passing throug h its por ts . A computer attached to the network[...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 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 comm unity string is “ public” with Re ad/Write acce ss. SNMP Configuration : SNMP Communities [...]

M ANAGEMENT S ETUP M ENU 2-21 Configuring IP Trap Managers The following figure and table desc ribe how to specify management stations that will receive authentica tion failure messages or other trap messages from the switch. Up to 5 trap managers may be entered. SNMP Configuration : IP Trap Managers ===================================== IP Address[...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-22 Console Login Configuration Use the Management Setu p: Console Login Config uration to restrict management access based on specified user names and passwords , or to set the inv alid passw ord threshold and time-out. There are only t wo us er types defined, ADMIN (Administrator) and GUEST , but you [...]

M ANAGEMENT S ETUP M ENU 2-23 Parameter Default Description Password Threshold 3 Sets the password intrusion thresho ld which limits the number of failed logon attempts. Range : 0~65535 Lock-out Tim e 0 The time (in seconds) the manage ment console will be disabled du e to an excessive nu mber of failed logon attempts. Range : 0~65535 (0 indicates [...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-24 Downloading System Software Using TFTP to Download Over the Network Use the TFTP Do wnload menu to lo ad softw are updates into the switch. The download file should be an SMC6924MT binar y file from SMC; otherwise the ag ent will not acce pt it. The success of the download operation depends on the a[...]

M ANAGEMENT S ETUP M ENU 2-25 Saving the System Configuration Use the Configuration Sav e & Restore menu to sa ve the switc h configuration settings to a file on a TFTP server . The file can be later downloaded to the switc h to restore the switch’ s settings. The success of the operation depends on the accessibility of the TFTP ser ver and t[...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-26 Configuration Download Download Server IP IP a ddress of a TFTP server. Download Filename The name of the file that contains the switch configuration settings you wish to res tore. [Process TFTP Download] Issues a request to the TFTP server to download the specifie d file. Download Status Indicates [...]

M ANAGEMENT S ETUP M ENU 2-27 Configuring Management Access Use the Management Configuration menu to define whic h VLAN has management access to the switch. P a rameters shown 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 GR AM 2-28 Configuring the Switch The Device Control menu is used to control a broad range of functions, including port configurat ion, Spanning T ree, por t mirroring, multicast filtering, and Vir tual LANs . Each of the setup screens provided by these configuration menus is described in the following section[...]

C ONFIGURING THE S WITCH 2-29 Extended Bridge Configuration Displays/configure s extended bridge capabiliti es provided by this switch. 802.1P Configu ration Configures default port priorities an d queue assignments. 802.1Q VLAN Base Information Displays b asic VLAN in fo rmation, such as VLAN version number and maximum VLANs supported. 802.1Q VLAN[...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-30 Configuring Port Parameters Use the P or t Configuration menus to set or display commun ication parameters for any por t or module in the stac k. Port Configuration : Unit 1 Port 1 - 12 ================== Flow Control on all ports : [Enable] [D isable] 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-dup lex mode. 100B ASE-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 GR AM 2-32 Viewing the Current Port Configuration The Port Infor mation screen displays the port type, status , link state, and flow control in use, as well as the communication speed and duplex mode. T o change any of the por t settings , use the P ort Configuration menu. Port Information : Unit 1 Port 1 - 12[...]

C ONFIGURING THE S WITCH 2-33 FlowControl InUse S hows the flow con trol type in use. Flow control can eliminate frame loss by “blockin g” traffic from end stations connecte d directly to the switch. Back pressure is used for hal f duplex and IEE E 802.3x for full duplex . Note that flow co ntrol should no t be used if a port is connecte d to a[...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 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 , bridges or routers. This allows the switch to interact with other brid ging devices (that is, an STA-compliant switch, bridg e or route[...]

C ONFIGURING THE S WITCH 2-35 Parameter Default Description Spanning Tree Protocol Enabled Enable this pa rameter to participat e in a STA compliant netwo rk. Priority 32,768 Device priority is used in selectin g the root device, root port, and desi gnated port. The device with the highest priorit y becomes the STA root devic e. However, if all dev[...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-36 Max (Message) Age 20 The maximum time (in seconds) a device can wait without receivi ng a configuration mess age before attempting to reconfigure. All device ports (except for designated ports) shou ld receive conf iguration messages at regular interval s. Any port that ages out STA information (pro[...]

C ONFIGURING THE S WITCH 2-37 Configuring STA for Ports The following figure and table de scribe port STA configuration. Spanning Tree Port Configuration : 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 GR AM 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 100/1 9/4 This parameter is used by [...]

C ONFIGURING THE S WITCH 2-39 Viewing the Current Spanning Tree Information The Spanning T ree Infor mation screen displa ys a summary of the STA infor mation for the overall bridge or for a specific port. T o make any changes to the parameters for the Sp anning T ree, use the Spanning T ree Configuration menu. Displaying the Current Bridge STA The[...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-40 Parameter Description Priority Device priority is used in selecting th e root device, root port, and designated port. Th e device with t he highest priority becomes the STA root device. However, if all devices have the same priority, the device with the lowest MAC address will the n become the root [...]

C ONFIGURING THE S WITCH 2-41 Displaying the Current STA for Ports The parameters shown in the following figure and table are for por t STA Infor mation. Spanning Tree Port Informatio n : Unit 1 Port 1 - 12 ============================= = Port Type Status Designated Desi gnated Designated Cost Bridge Port ---------------------------------- --------[...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-42 Parameter Description Type Shows 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 thi s port. Disabled Port has been disabled by th e user or has[...]

C ONFIGURING THE S WITCH 2-43 Designated Bridge (ID) The priority and MAC address of the device through which this port must communic ate to reach the roo t of the Spanning Tree. Designated Port (ID) The priority an d number of the port on the de signated bridging device through which this switch must communicate with the root of the Spanning Tree.[...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-44 Using a Mirror Port for Analysis Y ou can mirror traffic from any source port to a target por t for real-time analysis . Y ou can then attach a logic analyzer or RMON probe to the target port and study the traffic crossing the sour ce port in a co mpletely unobtr usiv e manner . W hen mir roring por[...]

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

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-46 Y ou can use the P or t T r unking Configur ation screen set up port tr unks as shown belo w : Port Trunking Configuration =========================== Trunk ID Status Member List 1234 --------- -------- ----------- ---- ------- ----------- ----------- -- -------- Unit : - Unit : - Unit : - Unit : - [...]

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

U SING THE S YSTEM C ONFIGURATION P RO GR AM 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 hav e to establish a separate connect ion with each client. It merely broadcasts its ser vice to the networ k, and any hosts which w ant to r[...]

C ONFIGURING THE S WITCH 2-49 Configuring IGMP This protocol allows a host to infor m its local switch/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 m ulticast filtering shown below . Note: The defaul t values are indicated in the sample scr een. IGM[...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-50 Configuring Broadcast Storm Control 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 port[...]

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

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-52 Configurable PVID Tagging This sw itch allow s you to override the de fault PVID (Port VLAN ID) assigned to untagged incoming frames under “802.1Q VLAN Port Configuration” on page 2-62.) Local VLAN Capable This switc h does not support multiple local bridges (that is, multiple Spanning Trees). B[...]

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 vic e (QoS) by using tw o priority queu es , 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 ma[...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-54 Port Priority Configuration Inbound frames that do not hav e any VLAN tags are tag ged with the input port’ s default VLAN ID (PVID) and th e Default Ingress User Priority as shown in the follo wing menu, and then so rted into the appropriate priority queue at the output port. (Note that if the ou[...]

C ONFIGURING THE S WITCH 2-55 802.1p Port Traffic Class Information This switch provides tw o priority le vels with W eighted Fair Queuing for port eg ress . This means that any frames with a priority tag from 0~3 are sent to the low prio rity queue “0” wh ile those from 4~7 are sent to the high priority queue “1” as sho wn in the following[...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-56 Configuring Virtual LANs Y ou can use the VLAN configuration menu to assign any port 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 se parate domains . Switches do not inherently support broadcast domains . This can lead [...]

C ONFIGURING THE S WITCH 2-57 802.1Q VLAN Current Table Information This screen shows the cu r 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 tagging. Ho wev er , if you just w ant to create a small port- based VLAN for one [...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-58 Creation Time The value of sysUpT ime (System Up Time) when this VLAN was created. Status Shows how thi s VLAN was added to the switch. Dynamic GVRP: Au tomatically learned via GVRP. Permanent: Added as a static entry. Unit Stack unit. Current Egress Ports Shows the port s which have been added to t[...]

C ONFIGURING THE S WITCH 2-59 802.1Q VLAN Static Table Configuration Use this screen to create a new VLAN or modify the settings for an existing VLAN . Y ou can add/delete por t members for a VLAN from any unit in th e stack as a tag ged or untag ged member . Or you can prev ent a port from being automati cally added to a VLAN by the GVRP protocol.[...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-60 Parameter Description VID The ID for the VLAN currently displaye d. Range: 1-2048 VLAN Name A user-specified symb olic name for this VLAN. String length: Up to 8 alphanumeric characters Status Sets the current editing status for this VLAN as: Not in Service, Destroy or Active. Unit Stack unit. Egres[...]

C ONFIGURING THE S WITCH 2-61 F or e xample, the following screen displays settings for VLAN 2, which includes tag g ed por ts 1-6, and forbidde n port 8. Notes : 1. T o allow this switch to participate in a VLAN group that extends beyond this switch, y o u mus t add the VLAN ID for the required ex ternal g rou ps . 2. If a remov e d port is no lon[...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-62 802.1Q VLAN Port Configuration Use this screen to configure port -specific settings for IEEE 802.1Q VLAN features . 802.1Q VLAN Port Configuration : Unit 1 Port 1 - 12 =============================== Port PVID Acceptable Ingress GVRP GVRP Failed GVRP Last Frame Type Filtering Status Registrations PD[...]

C ONFIGURING THE S WITCH 2-63 GVRP Status* Enables or dis ables GVRP for this port. When disabled, any GVRP packets received on thi s port will be discarded and no GVRP registrations will be propagated from othe r ports. Note that GVRP must be enable d for the switch bef ore this setting can take effe ct . (See Device Co ntrol Menu / Extended Bridg[...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-64 Port Security Configuration Use the P or t Security Configuration screen to enable and conf igure port security for the switch. P ort Se curity allows y ou to configure each port with a list of MA C addresses of device s that are authorized to access the network through th at port. Port Security Con[...]

C ONFIGURING THE S WITCH 2-65 Mode Port security can be set to th ree states; S tatic, Disable, or Learning. When set to Static, th e switch will drop packets from the port if the source MAC address does not matc h one of the addresses in the MA C Address list. If set to L earning, the switch will add the source MAC address of all packets received [...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-66 Monitoring the Switch The Network Monitor Men u provides access to p or t statistics , RMON statistics , IP multicast addresses , and the static address table . Each of the screens provided by these men us is described in the following sections . Network Monitor Menu ==================== Port Statis[...]

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

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-68 SQE Test Errors* A count of times that the SQE TEST ER ROR message is generated by the PLS su blayer. Deferred Transmissions* A count of frames for which the first transm ission attempt on a p articular interface is de layed because the medium was busy. Late Collisions The n umber of times that a co[...]

M ONITORING THE S WITCH 2-69 Displaying RMON Statistics Use the RMON Statistics sc reen to display key statistics for eac h port 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 each por t. RMON stati[...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-70 Multicast Fram es 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). Undersize Frames The total number of fra mes received that were less than 64 octets long (excludi ng framing b[...]

M ONITORING THE S WITCH 2-71 Displaying the Unicast Address Table The Address T able contains the MA C addresses and VLAN id entifier associated with each por t (that is, the source port associat ed with the address and VLAN), sor ted by MAC address or VLAN ID . Y ou can search for a specific address, clear the en tire address table, or information[...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-72 Unit Switch unit in the stack (1~6). Port The po rt whose address table incl udes this MAC address. Status Indicates address status as: D: Dynamically learne d, or P: Fixed permanently by SNMP netwo rk management software. Sorted/Cleared by Sele cts the primary key used to sort/clear the table: MAC [...]

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 Table =============================== VID Multicast IP Unit Multicast Group Por[...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-74 Configuring Static Unicast Addresses Use the Static Unicast Address T able Configuration screen to manually 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 shown belo w . Static Unicast Address Table[...]

M ONITORING THE S WITCH 2-75 Status The status for an entry can be set to: Permanent This entry is currentl y in use and will remain so after the next reset of the swit ch. DeleteOnRese t This entry is currently in us e and will remain so until the next reset. Invalid Removes the corres ponding entry. DeleteOnTimeOut This entry is currently in use [...]

U SING THE S YSTEM C ONFIGURATION P RO GR AM 2-76 Resetting the System Use the Restart command under the Main Menu to reset the management agent. T he reset screen includes options as sho wn in the following figure and table. Logging Off the System Use the Exit comma nd under the Main Menu to exit the configuration prog ram and term inate communica[...]

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 ag ent module provides an embedded HT TP W eb ag ent. This agent can be accessed by any computer on the network using a standard W eb browser (Internet Explorer 4.0 or above, or Netscape Navigator 4.0 or abo[...]

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

N AVIGATING THE W EB B RO W S E R I NTERFACE 3-3 If this is y our first time to access th e management agent, you should define a new Administrator passw ord, record it and put it in a safe place. From the Main M enu, sele ct Security a nd enter a new passw ord for the Administrator . Note that passwor ds can consist of up to 11 alphanumeric charac[...]

W EB -B ASED M ANAGEMENT 3-4 Panel Display The W eb agent di splays an image of the switch’ s ports, showing por t links and activity . Clicking on the image of a por t displays statistics and configuration infor mation for the port. Clicking on the imag e of the serial port (labeled “Mgmt”) displays the Co nsole Configuration screen. Clic ki[...]

P ANEL D IS PLAY 3-5 Console Configuration If you are ha ving difficulties making an out-of-band console connection to the serial port on the agent module, y ou can display or modify the cu r rent settings for the serial port through the W eb ag ent. Click on the serial port icon in the switch image to display or configure these settings , as shown[...]

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-Refresh Time 5 seconds Sets the interval bef ore a console session wi ll auto refresh the cons ole inf[...]

M AIN M ENU 3-7 Main Menu Using the on-board W eb ag ent, you can define system pa rameters , manag e and control the switch, the connected stack and all its ports , or monitor network conditions . The following tabl e briefly describe s the selections av ailable from this program. Menu Description System Provides basi c system descrip t ion, inclu[...]

W EB -B ASED M ANAGEMENT 3-8 System Information Use the System Infor mation screen to display descriptive infor mation about the switch, or for quic k syst em identi fication as sho wn in the following figure and table . Parameter Description System Name * Name assigned to the switch syst em. IP Address IP address of the agent you are managing. The[...]

S WITCH I NFOR MATION 3-9 Switch Information Use the Switch Information screen to display hardware/firmware version numbers for the main board, as well as the pow er status and modules plug ged into the system. Main Board Parameter Description Serial Number Serial number of th e main board. Number of Ports Number of ports (including m odules). Hard[...]

W EB -B ASED M ANAGEMENT 3-10 Agent Module Expansion Slot Parameter Description Hardware Version Hardware ve rsion of the agent module. POST ROM Version Agent module’s Power-On Self -Test version. Firmware Version Agent module’s firmware version. Role Shows that the agent modu le is operatin g as Master. Parameter Description Expansion Slot 1 S[...]

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 255.255.0.0 Subnet mask of the switch you have selecte d. This mask identif ies the host addres s bits used for routing to specific subnets. Gateway IP Gateway used to pass trap me ssages from the switch to the management station. N ote that the gateway must be define d if the management station is lo cated[...]

SNMP C ONFIGURATION 3-13 SNMP Configuration Use the SNMP Configuration screen to displa y and modify parameters for the Simple Networ k Management Pr otocol (SNMP). The stack should includes an SNMP ag ent module which monitors the status of its hardware, as w ell as the traffic passing through its ports. A computer attached to the netw ork, called[...]

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

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

W EB -B ASED M ANAGEMENT 3-16 Firmware Upgrade Options Y ou can upg rade system fir mware via a W e b browser , a TFTP ser ver, or a direct connection to the console port. Web Upload Management Us e t he W eb Up lo ad M ana g e me nt me nu t o loa d so ft war e u pd at es i nto t he switch. The upload file must be an SMC6924MT binary file from SMC;[...]

F IRM WARE U PGRADE O PTIONS 3-17 TFTP Download Management Use the TF TP Download Manag ement m enu to load sof tware updates into the switch. The download file s hould be an SMC6924MT binar y file from SMC; otherwise the agent will not acce pt it. T he success of the download operation depends on the acce ssibility of the TFTP server and the quali[...]

W EB -B ASED M ANAGEMENT 3-18 Configuration Save and Restore Use the Configur e screen to sa ve the sw itch configuration settings to a file on a TFTP ser ver . T he file can be later downloaded to the switch to restore the switch’ s settings. The su ccess of the operation depends on the accessibility of the TFTP ser ver and th e quality of the n[...]

C ONFIGURATION S AVE AND R ESTOR E 3-19 Configuration Download Management Use the Configuration Download Management to restore switc h configuration settings from a file on a TFTP sev er. P arameters shown on this scre en are indic ated in the fo llowing figure and tab le. Parameter Description Server IP Address IP addr ess of the TFTP server. File[...]

W EB -B ASED M ANAGEMENT 3-20 Address Table Configuration The Address Table contains the unicast MA C addresses and VLAN identifier associated wit h each port (that is , the source port), sorted by MA C address or VLAN . Y ou can also cle ar the entire address table , or infor mation ass ociated with a sp ecific address; or set the aging time for d[...]

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 provide backup links betw een switches , bridg es 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 o[...]

W EB -B ASED M ANAGEMENT 3-22 Spanning Tree The param eters shown in the followi ng figure and table describe the cur rent bridge STA Infor mation. Parameter Description Spanning Tree State Shows if the swi tch is enabled to participate in an STA-compliant network. Bridge ID A unique identi fier for this bridge, c onsisting of bridge priority plus [...]

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

W EB -B ASED M ANAGEMENT 3-24 The rules defining po rt status are: • A port on a network segment wi th no other STA compliant bridging device is always forwarding. • If two ports of a switch are connected to the sam e segment and there is no other STA device attached to this segm ent, the port with the sma ller 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 Bridge ST A configuration. Switch When the Switch Becomes Root Parameter Default Description Usage Enabled Enable this parameter to participate in an STA compliant netwo rk. Priority 32,768 Device priority is used in selectin g the root dev[...]

W EB -B ASED M ANAGEMENT 3-26 Max (Message) A ge 20 The maximum time (in seconds) a device can wait without receivi ng a configuration mess age before attempting to reconf igure. All device ports (except for designated ports) should receive configuration messages at regular intervals. Any por t that ages out STA information (p rovided in the la st [...]

S PANNING T RE E A LGORITHM (STA) 3-27 STA Port Configuration The following figure and table descri be STA conf iguration for ports or modules . Parameter Default Description Fast Forwarding Mode (All Ports) Enabled See “Fast Forward” in this table. Priority 128 Defines 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 pa rameter is used by the STA algorithm to determine the best path betwee n devices. Therefore, lower values should be assigned to ports attached to faster media, and higher valu es as signed to ports wi th slower media. The default and recommended range is: Standard Ethernet: 100 (50~600) Fast [...]

C ONFIGURING B RIDGE MIB E XTENSIONS 3-29 Configuring Bridge MIB Extensions The Bridg e MIB includes extensions for manag ed devices that support T raffic Classes and Vir tual LANs . T o display and configure these extensions , use the Bridge Extension screen as shown below: Bridge Capability Parameter Description Extended Multicast Filtering Se rv[...]

W EB -B ASED M ANAGEMENT 3-30 Bridge Settings Parameter Description Traffic Classe s* Multiple traf fic classe s are suppo rted by this switch as indicated under Bridge Capabilities. However, you c an disable this fun ction by setti ng this parameter to False. GMRP* GARP Multicast Regis tration Protocol (GMRP) allows network devices to regi ster en[...]

P RIORITY 3-31 Priority IEEE 802.1p defines up to 8 separate traffic classes . This switch supports Quality of Ser vic e (QoS) by using tw o priority queu es , with W eighted F air Queuing for each port. Y ou can use th e Priority Menu to configure the default priority for each port, or to displa y the mapping f or the traffic 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 . T his 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 follo[...]

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 shown on this screen are indicated in the following figure and table: Parameter Default Description CPU Join VLAN All Select ALL to give all VLAN s access to swit ch management, or ONE to restrict access to a [...]

W EB -B ASED M ANAGEMENT 3-34 Configuring Virtual LANs Y ou can use the VLAN configuration menu to assign any port 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 se parate 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 shows the cu r 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 tagging. Ho wev er , if you just w ant to create a small port- based VLAN for one or two switc hes[...]

W EB -B ASED M ANAGEMENT 3-36 VLAN Static List Use this scre en to create or remov e VLAN g roups . Egress Ports Shows the port s which have bee n added to th e displayed VLAN gr oup. Untagged Ports Shows the untagged VLAN port members . Parameter Description Current Lists al l the current VLAN groups created for t his system. Up to 256 VLAN groups[...]

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 port members for a VLAN from any unit in the stack. (Note that VLAN 1 is fix ed as an untag ged VLAN containing all por ts in the stac k, and cannot be modified via this screen.) The switch supports an overlapping V[...]

W EB -B ASED M ANAGEMENT 3-38 Use the menu sho wn 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 spec ified VLAN. Parameter Description Forbidden Egress Ports Prevents a port from being automatically added to th is VLAN via GVRP. Note that GV RP[...]

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

W EB -B ASED M ANAGEMENT 3-40 VLAN Static Membership by Port Use the screen shown belo w 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 able (pag e 3-37). Parameter Description Port Number Port number on the switch s elected from the up per display panel. Add/Remove[...]

C ONFIGURING V IRTUAL LAN S 3-41 VLAN Port Configuration Use this screen to configure port -specific settings for IEEE 802.1Q VLAN features . Parameter Description PVID The VLAN ID assigned to untagged f rames received on this port. Use the PVID to assign p orts to the same untagged VLAN. Acceptable Frame Type This swit ch accepts “All” frame t[...]

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 hav e to establish a separate connect ion with each client. It merely broadcasts its ser vice to the networ k, and any hosts which w ant to receiv e the multicas[...]

IGMP M ULTICAST F ILTERING 3-43 Configuring IGMP This protocol allows a host to infor m its local switch/router that it wants to receiv e transmissions addressed to a specific multicast address g roup . Use the IGMP Configuration screen to set k ey paramete rs for multicast filtering as shown below . Note: The defaul t values are indicated in the s[...]

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 m ulticast IP addresses and the cor responding VLAN ID . Parameter Description VLAN ID VLAN ID assigned to this multicast group. Multicast IP Address IP address fo r specific [...]

P ORT M ENUS 3-45 Port Menus Port Information The Port Infor mation screen displa ys the port status , link state, the communi cation speed a nd duplex m ode, as well as the flow contro l in use . T o change any of the por t settings , use the P ort Configuration menu. T he parameters are shown in the following figure and table . Parameter Descript[...]

W EB -B ASED M ANAGEMENT 3-46 Port Configuration Use the P ort 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 then re-enable it after the problem[...]

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 speed (1000/100/10 Mbps), duplex mode and flow con[...]

W EB -B ASED M ANAGEMENT 3-48 Port Broadcast Storm Protect Configur ation Use the P or t Broadcast Stor m Protect Configuration screen to configure broadcast stor m control for any por t on the switch. Parameter Default Des cription Broadcast Storm Protect Mode Enabled Allows you to enable /disable broadcast storm control for all ports on the switc[...]

P ORT M ENUS 3-49 Port Security Configuration Use the P or t Security Configuration screen to enable and conf igure port security for the switch. P ort Se curity allows y ou to configure each port with a list of MA C addresses of device s that are authorized to access the network through th at port. Parameter Description Port Numb er The port numbe[...]

W EB -B ASED M ANAGEMENT 3-50 Using a Port Mirror for Analysis Y ou can mirror traffic from any source port to a target por t for real-time analysis . Y ou can then attach a logic analyzer or RMON probe to the target port and study the traffic crossing the sour ce port in a co mpletely unobtr usiv e manner . W hen mir roring por t traffic, note tha[...]

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

W EB -B ASED M ANAGEMENT 3-52 Use the P or t T r unking Configuration screen to set up port tr unks as shown belo w : Parameter Description Trunk A unique ide ntifier for this trunk. Y ou can conf igure up to five trunks per switch. Status Enab les or disabl es the disp layed trunk. Member List You can c reate up to 12 tru nks for the entire st ack[...]

P ORT T RUN K C ONFIGURATION 3-53 The MT -RJ ports used for one side of a tr unk must all be on the same internal switch c hip . T he por t g roups per mitted include: The 100BASE-FX SC-type fiber ports used for one side of a tr unk must all be on the same module . Howev er, the 1000B ASE-X por ts used for one side of a tr unk may be on any switc h[...]

W EB -B ASED M ANAGEMENT 3-54 Port Statistics Use the P ort Statistics men u to displa y Etherlike o r RMON statis tics for any port on the switch. T he statistics displayed are indicated in the following figure and table . Etherlike Statistics Etherlike Statistics display key statis tics from the Ethernet-lik e MIB for each port. Error statistics [...]

P ORT S TATISTICS 3-55 Note: Statistics ar e automatically ref reshed every 60 seconds. Excessive C ollisions* The number of fram es for which transmission faile d due to excessive collisions. Internal Mac Transmit Errors* The number of frames for which transmission failed due to an internal MAC subl ayer transmit error. Carrier Sense Errors* The n[...]

W EB -B ASED M ANAGEMENT 3-56 RMON Statistics RMON Statistics display ke y s t a t i s t i c s f or 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 eac h por [...]

P ORT S TATISTICS 3-57 Note: Statistics ar e automatically ref reshed every 60 seconds. Oversize Frames The total numb er of frames rece ived that were lon ger than 1518 octets (excluding fram ing bits, but in cluding FCS octets) and were othe rwise well formed. Fragments The total number of frames received that were less than 64 octets in length ([...]

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

4-1 C HAPTER 4 A DVANCED T OPICS This TigerStack 100 supports Layer 2 switching and other advanced features, whic h are described in this chapter . Layer 2 Switching When a frame enters a port, its destination MA C address is check ed in the address database to see whic h port le ads to this destination. If the destinati on address be longs to the [...]

A DV ANC ED T OPICS 4-2 Spanning Tree Algori thm The Spanning T ree Algorithm (that is, the ST A configuration alg orithm as outlined in IEEE 802.1D) can be used to detect and disable netw ork loops , and to provide link backup . This allows the switch to interact with other bridging devices (including ST A-compliant switches , bridg es or routers)[...]

V IRTUAL LAN S 4-3 The following figure giv es an illu stration of how the Spanning T r ee 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 large networks th at handle a lot of IPX or NetBeui traffic . In conv entional networks with routers , broa[...]

A DV ANC ED T OPICS 4-4 addresses or IP subnets . VLANs inherently provide a high leve l of network security , since traffic must pass throug h a La yer 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 lti[...]

V IRTUAL LAN S 4-5 frame to the port’ s default VLAN if the frame is untagg ed (determined by the PVID of the receiving port), or ma ps it for output to the broadcast domain associat ed with the frame’ s VLAN tag. Port Overlapping P or t overlapping can be used to allo w access to common ly shared netw ork resources among different VLAN groups [...]

A DV ANC ED T OPICS 4-6 Connecting VLAN Groups The switch supports intra-VLAN communication using wire-speed switching . Howev er, if you hav e dev ices in separate VLANs that must communicate, and it is not practical to include these devices in a common VLAN , then the VLANs ca n be co nnected via a Layer 3 switch (suc h 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 thr ough your switch. IGMP Protocol The Inter net Group Manag ement Prot ocol (IGMP) r uns between hosts and their immed[...]

A DV ANC ED T OPICS 4-8 Priority assignment to a packet in the TigerStack 100 can be accomplished in any of th e following w ays: • Priority can be explic itly assign ed by end stations which have applicatio ns that requir e a higher priority than best-effort. This switch utilizes the IEEE 802.1p and 802.1Q ta g structure to decide priority assig[...]

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

A DV ANC ED T OPICS 4-10 This switch provides support for mini-RMO N which contains the four key g roups required for basic remote monitoring . T hese gr oups 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 utilizati[...]

A-1 A PPENDI X A T ROUBLESHOOTING Troubleshooting Chart Troubleshooting Chart Symptom Action Cannot connec t using Telnet, Web browser, or SNMP software • Be sure to have configu red the agent with a valid IP address, subnet mask and default gateway. • Check that you have a valid network connection to the switch and that the port you are using [...]

T R OUBLESHOOTING A-2 Upgrading Firmware via the Serial Port Y ou can upg rade system fir mware by connecting y our computer to the serial port on the switch, and using a console interface package that supports the XModem protocol. (See “Required Connections” on page 1-2.) 1. R estart the system by using the Re start System command or resetting[...]

U PGRADING F IR MWARE VIA THE S ERIAL P ORT A-3 3. Change your baud rate to 115200 bps, and press Enter to enable download mode. F rom the ter minal em ulation prog ram, select the file you w ant to download, set the protocol to XModem, and then initialize downloading . Notes: 1. If you use Windows HyperT erminal, disconnect and reconnect to enable[...]

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 re ar panel is used to connect to the switch for out-of-band console conf iguration. The on-board menu-dri ven configuration prog ram can be accesse d from a ter minal, a PC r unning a ter minal emulation program, or from a remote locati on via a[...]

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 -----------SG ND ---------- 5 SGND No other pins are used. Switch’s 9-Pin Serial Port Null Modem[...]

Glossary-1 G LOSSARY Bandwidth Utilization The percentag e of packets receiv ed ov er tim e as compared to overall bandwidth. BOOTP Boot protocol used to load the opera ting system for devices connected to the net work. GARP VLAN Registration Prot ocol (GVRP) Defines a way for switches to ex change VLAN infor mation in order to register necessar y [...]

G LOSSAR Y Glossary-2 IEEE 802.1D Specifies a general method for the operation of MA C bridg es, including the Spanning T ree Protocol. IEEE 802.1Q VLAN T ag ging defines Ethernet frame tags whic h carr y VLAN infor mation. It allows switches to a ssign end-stations to different virtual LANs , and defines a standard wa y for VLANs to communicate ac[...]

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 lower - speed physical links . Remote Monitoring (RMON) RMON provides comprehensi ve n etw ork monitoring capabilities . It eliminates the polling required in standard SNMP[...]

G LOSSAR Y Glossary-4 Virtual LAN (VLAN) A Virtual LAN is a collection of network nodes that share the same collision domain regardless of their physical location or connection point in the network. A VLAN se r ves as a logical workgroup with no ph ysical bar riers , allowing users to share in for mation and resources as though located on the same [...]

Index-1 Numerics 802.1p port priority 3-31 , 4-7 802.1Q VLANs 2-56 , 3-34 , 4-3 802.3x flow control 2-31 , 3-47 A analyzer port configuration 2-44 , 3-50 B baud rate configuration 2-17 , 3-5 BOOTP enabling 2-14 , 3-11 for IP configuration 1-5 BPDU 4-2 Bridge Protocol Dat a Units See BPDU bridge STA information 2-39 , 3-21 Broadcast Storm Control 2-[...]

I NDEX Index-2 Internet Grou p Management Protoc ol See IGMP IP configu ration 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 interface 2-1 M MAC address of system 2-12 MAC address table, displaying 2-71 , 3-20 management options 1-1 software, SN MP 4-9 mirror port co nfiguration 2-44 [...]

I NDEX Index-3 switch c onfiguratio n 2-28 switching , 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-out, cons ole 2-18 , 3-5 traffic classes configuration 2-53 , 3-31 , 4-7 trap managers, configuring 2-21 , 3-14 troublesh ooting A-1 trunk port configuration 2-45 , 3-51 U unicast address table[...]

I NDEX Index-4[...]

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38 T esl a Irvine, CA 92618 Phone: (949) 679-8 000 Model Number: SMC6924MT Publication Number: 150200025700A Revisio n Number: E112002-R0 1 FOR TECHNICAL SUPPOR T , CALL: From U.S.A. and Canada (2 4 hours a day , 7 days a week) (800) SMC-4-Y OU; (949) 679-8000; F ax: (949) 679-1481 From Europe (8:00 AM - 5:30 PM UK T ime) 44 (0) 118 974 8700; Fax: [...]