Bridge-MIB on Nexus 5k not fully implemented?

[geder]

Dear Support Community

I have installed a Nexus 5k with same FEX. Our NMS is polling Mac-Table of Switches and writing it to DB.

MAC-Table is part of Bridge-MIB but on my Nexus there I dont get MAC-Adresses.

I'm wondering that MIB  is not supportet (http://www.cisco.com/en/US/docs/switches/datacenter/nexus5000/sw/mib/reference/NX5000_MIBRef.html)  but I get Responce when doing a snmp-walk to Brideg-MIB .1.3.6.1.2.1.17. This document is for Nexus version 4.1 and I'm using 4.2.

Did anyone fond a sollution for getting MAC-Table via SNMP?

Kind Regards

Gernot

[Chad Peterson]

Hi Gernot,

It looks like the Bridge-MIB is initially added in 5.0(2).  It looks like more support for this MIB will come in time.  However careful doing an snmpwalk on bridge-mib on 5.0(2) due to CSCtj44387.  Looks like the bug only comes up when the vPC link is going down...so shouldn't be something that you always it, but something to look out for.

Chad

[Lucien Avramov · Accepted solution]

Gernot,

Don't forget the vlan for the context number. You need version 5.0 or later for the bridge mib support, 4.1 or 4.2 won't provide you what you are looking for.

Also You need to use context along with the community.
For eg. For vlan 10, it would be something like:

snmpwalk -v 2c -c public@10 172.16.165.36 1.3.6.1.2.1.17.4.3.1.1

[geder]

Hallo all.

I get the sollution:

Procedure is described in Link below, but VTP-Mib is supported only at Nexus Software 5.0.2.N.2.1 which is the latest.

http://www.cisco.com/en/US/products/ps7334/serv_home.html

Thanks to all

Kind Regards

Gernot