ME-3600X Version 15.2(4)S, RELEASE SOFTWARE (fc1)ASR1001 Version 15.3(1)S1,
RELEASE SOFTWARE (fc1)
ME-3600X G0/1 is connected to ASR 1001 G0/0/1
ME-3600Xinterface GigabitEthernet0/1
description uplink-nav-oxr-core1
switchport access vlan 100
mtu 9200
!
interface Vlan100
description nav-oxr-base1-mgmt
mtu 9200
ip address XXX.209.96.102 255.255.255.240
ip ospf cost 10
!
ASR 1001interface GigabitEthernet0/0/1
description uplink-nav-oxr-base1
mtu 9200
ip address XXX.209.96.97 255.255.255.240
ip flow ingress
ip flow egress
ip ospf cost 10
negotiation auto
mpls ip
cdp enable
On Tuesday, December 16, 2014 6:28 PM, David Coulson
<[email protected]> wrote:
What platform? What code?
Can you post your interface config?
Sent from my iPhone
> On Dec 16, 2014, at 9:22 PM, Eric A Louie via cisco-nsp
> <[email protected]> wrote:
>
> I encountered a strange problem that I'm hoping is a bug.
> Directly connected routersMTU 9200Works fine with single IP addresses
> As soon as I put a secondary address on both interfaces (one VLAN, one
> physical interface), the MTU allowed magically decreased to 1477. 1500 byte
> packets with DF set would not pass.
> Removing the secondaries fixed the problem.
> Anyone seen this before?
>
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