[c-nsp] EIGRP - Retry Limit Exceeded

[Oliver Boehmer (oboehmer)]

Steve Wright <> wrote on Thursday, February 15, 2007 5:12 PM:

>> 'debug ip packet' against an ACL for the two neighbors for EIGRP
>> packets might help to verify we are seeing them at the IP layer
>> along with the sniffer trace.
> 
> After some further workings on this, it does look like the 7301 with
> an interface MTU of 1900 is generating larger packets than the
> interface MTU on the NPE-G1 (1500).

why do you use different MTUs on this link?

> For some reason I am still to be
> able to recreate this in a labbed environment, but the issue is
> reproduceable on the kit in place.  
> 
> Feb 15 16:04:11.685 GMT: IP: s=1.2.3.252 (local), d=1.2.3.223
> (GigabitEthernet0/0), len 1756, sending 
> Feb 15 16:04:16.685 GMT: IP: s=1.2.3.252 (local), d=1.2.3.223
> (GigabitEthernet0/0), len 1756, sending 
> Feb 15 16:04:21.685 GMT: IP: s=1.2.3.252 (local), d=1.2.3.223
> (GigabitEthernet0/0), len 1756, sending 
> Feb 15 16:04:26.685 GMT: IP: s=1.2.3.252 (local), d=1.2.3.223
> (GigabitEthernet0/0), len 1756, sending 
> Feb 15 16:04:31.685 GMT: IP: s=1.2.3.252 (local), d=1.2.3.223
> (GigabitEthernet0/0), len 1756, sending 
> 
> Is their anyway to limit the size of routing packet in EIGRP?

ip mtu?

	oli