If a router port for intelligent multicasting is mirrored with a piggyback port, the piggyback port is listed instead of the router port.

Redundant Switch Controller

The following problem has no workaround:

Do not enable redundancy unless you have a redundant switch controller.

On a P880 with an 80-series supervisor module, the redundant switch controller may not take over when the active switch controller fails.

Remote Monitoring (RMON)

The following problems have no workaround:

30 minute RMON statistics always show utilization as 0 (Zero) on a heavily used Gigabit Ethernet port.

Statistics for unicast frames do not work when using multilayer (ISL) tagging.

Simple Network-Management Protocol (SNMP)

 

The following problems have no workaround:

 

Cold start traps cannot be transmitted out of inband

 

interfaces after you enable Spanning Tree.

 

ipAddrTable does not display inactive interfaces (VLANs). An

 

inactive interface occurs when there are no active ports on a

 

VLAN.

Problem:

If you use the CLI to perform either of the following

 

commands, the supervisor module stops responding and

 

resets:

 

snmp walk aarpNetAddress

 

snmp walk cjnAtEchoSend

Workaround:

Use SNMP from a management station to access these MIB items.

610-0184-095

June 14, 2001

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Avaya P550R, P580, P880 manual Redundant Switch Controller, Remote Monitoring Rmon, Simple Network-Management Protocol Snmp