what is ifindex !?

[mohammed hashim]

hi,

today I faced this command:

snmp-server ifindex persist

could not understand it due to ifindex !!

all what I know is it is a value of an interface, but what is used for and why we need this command !?

thanks,

[Richard Michael · Accepted solution]

I recommend reading the below link

http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12-2SX/configuration/guide/book/ifindx.html