Cabletron Systems manual Using the EMM-E6 Hub View

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Using the EMM-E6 Hub View

-SEG (Segmented) indicates that the port has been segmented by the repeater due to an excessive collision level.

NOTE

Because BNC thin coax, AUI, and transceiver ports do not support the link feature, the displayed Admin/Link status for those ports may be misleading: for example, a BNC port will display as segmented when, in fact, there is no cable or terminator attached or the cable has been disconnected; and AUI or transceiver port will display as on (with a valid link signal) even when no cable is attached. Be sure to keep these anomalies in mind when troubleshooting a hub so equipped.

•Admin Status displays either ON or OFF, an indication of whether management has the port enabled or disabled. A port can be ON but not operational; for example, under the Admin display, ports that are segmented or not linked are shown as ON.

•Active Ports displays either YES or NO for any active (green) port, indicating whether or not that port has seen any traffic at all since the device was last initialized; this port display form can tell you whether any port whose statistics are not currently incrementing has seen some activity in the past. Non-green (presumably inactive) ports will display three dashes (---), regardless of their past statistical activity.

•Topology displays either TRUNK or STN (station), a status which is defined by how many source addresses are communicating through that port at any given moment: if zero, one, or two addresses are communicating, the port is considered to be a station port; if more than two addresses are communicating, the port is considered to be a trunk port. See Setting a Port’s Trunk Type, page 2-32, for more information.

NOTE

If you use the Trunk Type option on the Port menu to manually change a port’s topology status from Force Trunk to Not Forced, any status change from trunk to station will not be reflected in the port display until the current cycle of the Source Address timer is complete. See Chapter 6, Source Addressing, for more information on the timer.

Older versions of EMM-E6 firmware (previous to revision level 2.00.16) use slightly different definitions of station and trunk status: station ports are defined as those which are detecting no source addresses or only a single source address; trunk ports are those detecting two or more. If you have any questions about which definition your version of firmware employs, or if you would like information about upgrading your EMM-E6 firmware, contact the Cabletron Systems Global Call Center. Also, see Chapter 6, Source Addressing, and Chapter 7, Security, for more information about station and trunk status.

•FNB Channel displays a letter which indicates each port’s current channel assignment: A, B, C, or SA (stand-alone).

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Monitoring Hub Performance

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Contents EMM-E6 Page Virus Disclaimer Restricted Rights Notice Contents Chapter Source Addressing Chapter SecurityChapter Front Panel Redundancy Appendix a EMM-E6 MIB StructureContents Using the EMM-E6 User’s Guide IntroductionUsing the EMM-E6 User’s Guide What’s not in the EMM-E6 User’s Guide UPSConventions Screen Displays Window ConventionsUsing the Mouse ButtonGetting Help EMM-E6 Firmware Year 2000 ComplianceUsing the EMM-E6 Hub View Using the Hub ViewNavigating Through the Hub View Hub View Front PanelUptime Date and TimeDevice Name Device LocationUsing the EMM-E6 Hub View EMM-E6 Ports Display Using the Mouse in a Hub View Module Brim PortsHub View Port Color Codes Port Display FormMonitoring Hub Performance Port Display Form Errors LoadTraffic CollisionsFrame Sizes ProtocolsPort Type Using the EMM-E6 Hub View Name and Location Checking Device Status and Updating Front Panel InfoContact Checking Network Status Chassis TypeName Active UsersChecking Module Status Module TypeChecking Port Status Link StatusStatus Media TypeViewing the IP Address Table Topology TypeLaunching the Global Find MAC Address Tool Checking StatisticsUsing the EMM-E6 Hub View Received Bytes Total PacketsAvg Packet Size Broadcast PacketsTotal Errors Alignment ErrorsCRC Errors OOW CollisionsRunt Frames Giant FramesViewing the Port Source Address List Protocols/Frames StatisticsUsing the EMM-E6 Hub View Setting the Polling Intervals Managing the HubContact Status Device General StatusConfiguring FNB Connections Device ConfigurationPort Operational State StatisticsConfiguring RIC MIM Connections To configure FNB connectivity for an individual port Setting a Port’s Trunk Type 15. Tpxmim Channel Selection WindowTo change a port’s topology status Enabling/Disabling MIM Ports Alarm Configuration Using Alarm Configuration From the command line stand-alone modeFrom the icon From the Hub ViewConfiguring Alarms CRCSetting Repeater Alarms BroadcastSetting and Changing Alarms Set Repeater Alarms WindowSetting Module and Port Alarms Setting Module AlarmsSet Module Alarms Window Set the Status to EnabledSetting Port Alarms Set Port Alarms WindowSet the Status to Enabled Alarm Configuration Setting Module and Port Alarms What is a Segmentation Trap? Link/Seg TrapsWhat is a Link Trap? Enabling and Disabling Link/Seg TrapsSpmarun r4hwtr IP address community name Configuring Link/Seg Traps for the Repeater Viewing and Configuring Link/Seg Traps for Hub ModulesModule Traps Window Viewing and Configuring Link/Seg Traps for Ports Port Traps WindowLink/Seg Traps Link/Seg Traps Enabling and Disabling Link/Seg Traps Setting Network Circuit Redundancy Repeater RedundancyConfiguring a Redundant Circuit Spmarun r4red IP address community nameChannel X Redundancy Window Add Circuit Address Window Repeater Redundancy Monitoring Redundancy To set the Poll IntervalSource Addressing Displaying the Source Address ListDisplaying the Source Address List Source Addressing Setting the Hash Type Setting the Aging TimeLocking Source Addresses Source Address Locking on Older Devices Configuring Source Address Traps Repeater-level Traps Module- and Port-level Traps Source Addressing Finding a Source Address Port Source Address Traps WindowClick on to exit the window Security What is LANVIEWSECURE? Spmarun r4sec IP address SU community nameSecure address assignment New definitions for station and trunk portsTrunk port security Newest Lanviewsecure Features Continuous learning modeConfigurable violation response Full or partial security against eavesdroppingSecurity on Non-LANVIEWSECUREMIMs Learned addresses resetForced non-secure status Configuring Security Security To assign secure addresses to a port Addresses Window Boards with Multiple Caches Add MAC Address WindowResetting Learned Addresses Tips for Successfully Implementing Eavesdropper ProtectionEnabling Security and Traps Security Repeater-level Security and Traps Channel X Security WindowModule-level Security and Traps Channel X Module Security Window Port-level Security and Traps Channel X Port Security WindowSecurity Setting Front Panel Redundancy Front Panel RedundancySetting Front Panel Redundancy Add Circuit Address Window Front Panel Redundancy Setting Front Panel Redundancy Ietf MIB Support EMM-E6 MIB StructureMIB Components Chassis MGRHost Services IP ServicesRepeater One, Repeater Two, and Repeater Three Ctron Use OnlyRmon Default Distributed LAN MonitorMIB Navigator Rmon HostBrief Word About MIB Components and Community Names EMM-E6 MIB Structure Index Index-2 Index-3 Index Index-4
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