[c-nsp] SNMP MIB question

[Justin M. Streiner]

On Tue, 15 Apr 2008, Gurung, Provin wrote:

> We have been doing snmpwalk's on 1.3.6.1.4.1.9.9.23.1.1.1.1.6
> to get the interface index.
>
> snmpwalk responds with the following output.
>
> .1.3.6.1.4.1.9.9.23.1.1.1.1.6.1 = "FastEthernet0/0"
> [snip]
> .1.3.6.1.4.1.9.9.23.1.1.1.1.6.14 = "FastEthernet0/0.49"
>
> The Cisco SNMP Object Navigator says that the parent node
> (".1.3.6.1.4.1.9.9.23.1.1.1.1") is "cdpInterfaceEntry",

> There is no entry for "6".  If this an offical mib entry we can count
> on?

Why not use the MIB-II tree?

1.3.6.1.2.1.2.2.1.2 will give you the same information as above, i.e. 
"FastEthernet0/0" and so on...

The ifIndex for that particular interface can be returned as part of the 
OID.

I suspect that using the OIDs you have above is only worthwhile if 1. 
your device is running CDP and 2. it's not explicitly disabled on certain 
interfaces.

Hope this helps

jms