Cabletron Systems TRMMIM manual Alarm Configuration

Page 88

Alarm Configuration

AC Errors

Also known as ARI/FCI errors, AC errors occur during

 

the Ring Poll or Neighbor Notification process when one

 

station fails to correctly set the ARI (address recognized)

 

and FCI (frame copied) indicator bits on the current AMP

 

(active monitor present) or SMP (standby monitor

 

present) frame intended for it, thus leaving its

 

downstream neighbor without an accurate upstream

 

neighbor’s address. AC errors are detected when a

 

station receives more than one AMP frame with ARI and

 

FCI bits still set to 0 without seeing an intervening SMP

 

frame with its bits set to 1, or when the station detects an

 

SMP frame with its ARI and FCI bits set to 0 without

 

having seen an AMP frame with its ARI and FCI bits set

 

to 1. When a station detects an AC error, it stops the Ring

 

Poll process by not issuing its own SMP frame; no other

 

ring recovery procedures are initiated.

Congestion

A congestion condition occurs when a station recognizes

Errors

a frame addressed to it, but is unable to copy the frame

 

because it has no available buffer space. Although this

 

may indicate a station which is performing poorly, no

 

ring recovery procedures are initiated. Note that the

 

count of congestion conditions reflects the number of

 

times frames have been dropped, not the number of

 

frames dropped.

The Station List box lists the stations detected on the selected ring, the module and port through which they are connected, the name of the station (if one has been assigned), and the status and threshold of the alarm type highlighted in the alarm list.

NOTE

NOTE

A station listed at module and port 0 is part of the TRMMIM-managed ring, but not directly connected to the TRMMIM-controlled hub (or TRMMIM). You can still set alarms for these stations.

The Threshold field allows you to configure a new threshold for the selected alarm type; the new threshold will be applied as indicated by the current selection in the Set Alarm For field.

When setting thresholds for station-level alarms, keep in mind that the TRMMIM is counting occurrences of the selected variable on individual stations only, not all occurrences on the ring. Note, too, that station-level alarms can only be set for isolating errors — that is, those that do pinpoint a specific trouble spot on the ring. Station alarm notification (traps) will include the address of the offending station.

4-8

Setting and Viewing Station Alarms

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Contents Trmmim Page Virus Disclaimer Restricted Rights Notice Applicable to licenses to the United States Government onlyContents Chapter Ring Map Chapter Alarm ConfigurationChapter Statistics Chapter Ring Security Configuration Appendix a Trmmim MIB StructureContents Using the Trmmim User’s Guide TrmmimWhat’s not in the Trmmim Guide Introduction to Spma for the TrmmimConventions Screen DisplaysIntroduction to Spma for the Trmmim Using the Mouse ButtonGetting Help FTPTrmmim Firmware Introduction to Spma for the Trmmim Trmmim Firmware Using the Trmmim Hub View Using the Hub ViewUsing the Trmmim Hub View Navigating Through the Hub ViewHub View Front Panel Trmmim Hub ViewUptime Time and DateDevice Name Device LocationUsing the Trmmim Hub View Using the Mouse in a Hub View Module Module Index FNB Bypass State Hub View Port Color Codes Port Display FormErrors FramesTotal Bytes Port TypeFNB Display Monitoring Hub Performance Using the Trmmim Hub View Checking Device Status and Updating Front Panel Info Name and LocationChecking Module Status ContactDate and Time Total RingsSpeed Fault Speed Fault LocationModule Name ModuleAdmin State Checking Port StatusPort Name Module/PortLink State Time Checking Station StatusInsertion Trap Vendor Station NameUpstream Neighbor/Downstream Neighbor Physical Location PriorityPort Mapping Reverse MACsChecking Ring Port Status Configuring Station Name, Location, or PriorityFault State Time Media FaultClass Media TypeChecking Statistics Bytes LineBurst AbortManaging the Hub at the Device Level Managing the HubFind MAC Address Setting the Polling Intervals 12. The Find MAC Address Window13. Trmmim Polling Intervals Contact StatusDevice General Status Device ConfigurationPort Operational State StatisticsManaging the Hub at the Module Level Controlling Token Ring FNB Multiplexer ConnectionsINS Board Left ConnectRight Connect BypassControlling Token Ring Speed Clearing the Module FNB Configuration Window SelectionsControlling Token Ring MIM Management Mode Enabling All Ports on Token Ring ModulesAuto AUT Management MGTConverting a Station Port to a Ring-out Port Managing the Hub at the Port LevelEnabling and Disabling Station and Ring Ports Removing a Station from the Ring Ring Map From the command line stand-alone mode Launching the Ring MapFrom the icon From the Hub ViewSelecting a Ring to Map Ring NameRing Map Speed StationsName UtilizationViewing Station-specific Information Quick Info Popup WindowBoard and Port DropSetting a Station Name Performance and ErrorsSetting a Station Drop Viewing Management Station ConfigurationCommands Error Status Open StatusError Active MonitorError Report Timer Setting the Statistics Calculation ModeViewing Ring-level Information Viewing the Error Table Set Calculation Mode WindowError Table Window Total Errors Isolating ErrorsNon-Isolating Errors Changing the Station Labels Viewing Device Information Setting the Map Poll Interval Device Information WindowViewing Beacon History Active Monitor ChangesRing Purges Beacon EventsLongest Beacon Last Beacon TypeLast Beacon Beacon Configuration 12. The Beacon Configuration Window Using the Find Options Searching by Station Name, MAC Address, Board/Port, or Drop 13. Sample Find WindowsFinding the Active Monitor on the Network Finding the Management Station on the Network Frames or Errors measured/Δ Time in seconds Accessing Other Spma Applications 14. Sample Find Highest and Lowest WindowsAlarm Configuration Spmarun e5alarms IP address community name Setting and Viewing Ring Alarms Alarm Configuration Setting and Viewing Station Alarms Setting a Ring Level AlarmAlarm Configuration Alarm Configuration Alarm Configuration Setting a Station Level Alarm Alarm Configuration Setting and Viewing Station Alarms Using Statistics StatisticsViewing the Ring Station List Spmarun e5stats IP Address community nameModule and Port Stn NameUpstream Addr Downstream AddrMonitoring Ring and Station Statistics Using the Reverse MAC ButtonRefreshing the Station List Creating a Pie Chart Creating a Graph or Meter Click mouse button 1 on Ring and Station Variables GeneralProtocols KBytesIsolating Errors Line ErrorsBurst Error AC ErrorAbort Error Non-Isolating ErrorsInternal Error Token Errors Frequency ErrorsStatistics Ring and Station Variables Ring Security Configuration About Ring SecurityLaunching the Security Configuration Window Ring Security ConfigurationSecurity Configuration Ring Selection window, -1, will appear Allowed Station List Allowed CountDisallowed Station List Disallowed CountDisable Security Security Mode OptionsEnable Security Allowed/Disallowed List Configuration Buttons Configuring Security Building the Allowed List AutomaticallyDeleting Stations from the Allowed or Disallowed Lists Station Addition WindowClearing All Entries in the Allowed or Disallowed List Clear List WindowChanging the Ring Security Mode RemoveIetf MIB Support Trmmim MIB StructureChassis MGR Protocol StackSnmp Agent Network One, Network TwoBrief Word About MIB Components and Community Names TelnetTrmmim MIB Structure Index Index-2 Index-3 Index-4
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