problems with dot1dTpFdbPort on baystack 5510-48T

[atonns]

I'm missing a lot of addresses in the SNMP dot1dTpFdbPort table on my 5510. It's running 4.1.0.5 software.

Basically, I can see the address when I run from the switch:
"show mac-address-table vid 123"

but when I run from a host:
"snmpwalk switchname dot1dTpFdbPort"

I'm missing many MANY ports. What gives?

Tony

 

[atonns]

I think I see the problem. The dot1dTpFdbPort table on the 5510 doesn't specify a VLAN. With our sun hosts, we use the same MAC address on different VLANs. In the dot1dTpFdbPort table, each MAC address has only one entry - where it could have multiple entries, one per VLAN.

On Cisco switches, this is gotten around by using community string indexing (

http://www.cisco.com/en/US/tech/tk648/tk362/technologies_tech_note09186a00801576ff.shtml)

Any idea how this works on Nortel?

Tony