Avaya P550R, P580, P880 manual Frames Transmitted with Cyclic Redundancy Check CRC Errors

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Workaround: Use the following table to determine the option that corresponds to the rate that you want to set.

Table 8. Flood Rate Limiting on 80-Series 10/100 Modules

Desired Rate

Web or CLI Setting

 

 

80%

10%

 

 

40%

5%

 

 

20%

2%

 

 

10%

1%

 

 

*Note: Do not use the 20%, 40%, or 80% options of the Web Agent or CLI.

Frames Transmitted with Cyclic Redundancy Check (CRC) Errors

Problem:For certain revisions of the Cajun P550R/P580/P880/P882 switch 12- and 20-port module (Model M5520-100TX, module Type 9, revision level A or B and M5512-100TX, Revision A), a temperature sensitivity problem has been found when operating at 10 Mbps. This sensitivity results in the port transmitting frames with CRC errors. These frames, since they have CRC errors, are then dropped by the receiving station.

Workaround: The following legacy-clicommand allows you to implement a new configuration to disable the power saving mode of the Phy chip. This has the same effect as moving the port’s operational temperature past the problem range. The new configuration is saved only in

NVRAM:

>port set DisablePowerSave <port> on

*Note: Except for this command, the Legacy-CLI is not supported by the Cajun Switch.

610-0184-095

June 14, 2001

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Contents Overview Cajun P550R/P580/P880/P882 Switch Release NotesSoftware Features New Hardware and Software FeaturesHardware June 14 Overview Supported Product Binaries and Boot CodesQueue Classification and Servicing Features Type of Switch Binary File Boot FileClassification of Traffic WFQ Queue-Servicing Algorithm Port Mirroring on 80-Series ModulesSetting Up Port Mirroring Configuring Port Mirroring By Using the CLIPort Ranges for 80-Series Port Mirroring Port Ranges for 80-Series Port Mirroring Config# clear port mirror fabricmode2 channel channel If you select Then Configuring Port Mirroring By Using the Web AgentEnabling Option 82 for Dhcp Changing the Status of Option 82 by Using the Web AgentCjnipv4serv.mib Changing the Status of Option 82 by Using the CLIChanging the Status of Option 82 by Using Snmp MIB ItemEnabling MAC Address Lock and Traps by Using the CLI Enabling MAC Address Lock and Traps by Using the Web AgentEnabling Traps for Unknown Source Addresses ProminetMib.txt, version Enabling MAC Address Lock and Traps by Using SnmpProminetMib.txt MIB, MIB Items, and OIDs for MAC Address LockCorrected Problems Changed CLI CommandsEnhancements Flood Rate Limiting Known Problems and WorkaroundsCommand Line Interface CLI ATM Uplink ModulesDesired Rate Web or CLI Setting Frames Transmitted with Cyclic Redundancy Check CRC ErrorsIgmp Group Membership Table Hot Swap ModulesIntelligent Multicasting Example L3 Forwarding Cache IPXPoint-to-Point Protocol PPP and Telnet Option 82 for DchpSeries Modules Port MirroringRemote Monitoring Rmon Redundant Switch ControllerSimple Network-Management Protocol Snmp P580/P882 Chassis Slot Downloading the Startup Configuration FileSupervisor Module Following error message in the CLI Switch PortsAuto-Negotiation Vlan IssuesWeb AFT Issues Functional RestrictionsLegacy CLI Checksum Error MessageCajunView CPU SynchronizationHunt Groups Distance Vector Multicast Routing Protocol DvmrpLink Status Netscape Loopback TestsOversized Packets 3Com Tagging Redundant Controller SupportSoftware License Keying Spanning Tree Protocol STPWeb Agent Documentation Updates and CorrectionsTftp Download Status Delay Cajun P550R/P880/P882 Switch User GuideClick Interfaces Technical SupportCommand Setting the Priority of a PortExamples Setting a Port to Ignore Tag PriorityDisplaying the Port Settings Setting a Rule in an Access Control List June 14 Displaying Access Control Lists Setting WFQ Correct syntax for Command 2 is Displaying the Queue Service Settings