Question concerning Port-Indexing on a Cisco 2960

[derplord1234]

My task is to find out the neighbors of the 2960 on the port with SNMP.

iso.0.8802.1.1.2.1.4.1.1.7 ->
     iso.0.8802.1.1.2.1.4.1.1.7.0.25.1 = STRING: "1/g23"

As far as I understand that does mean that on local port 25 there is a connection to 1/g23 of the connected switch.

But...

IF-MIB::ifIndex
     ...     
     IF-MIB::ifIndex.10123 = INTEGER: 10123
     IF-MIB::ifIndex.10124 = INTEGER: 10124
     IF-MIB::ifIndex.10125 = INTEGER: 10125
     IF-MIB::ifIndex.10126 = INTEGER: 10126
     IF-MIB::ifIndex.10127 = INTEGER: 10127
     ...

Is the port with the index 10125 the same as just 25 above?

[Rolf Fischer · Accepted solution]

Hi,

you can validate the different interface enumeration types with

1) LLDP-MIB::lldpLocPortId

Example:

iso.0.8802.1.1.2.1.3.7.1.3.1 = "Fa0/1"

iso.0.8802.1.1.2.1.3.7.1.3.2 = "Fa0/2"

(...)

2) CISCO-STACK-MIB::portIfIndex

Example: 

enterprises.9.5.1.4.1.1.11.1.1 = 10001

enterprises.9.5.1.4.1.1.11.1.2 = 10002

(...)

ifName.10001 = Fa0/1

ifName.10002 = Fa0/2

(...)

Hope that helps

Rolf

[derplord1234]

Thank you, that was exactly what I needed :)