mpls mtu command on subinterfaces

Unanswered Question
Jun 22nd, 2007
User Badges:


i have a 7604 router with som gig interfaces.

i have some subinterfaces (802.1q) interfaces on the physical interface, which are trunks to other mpls pe router, so i have to do labelswitching.

therefore i use the command "mpls mtu 1512".

the problem is, that i only can configure this command on the physical interface and NOT on the subinterface.

or is it so, that if i configure this on the main/physical interface that automaticly this is also so for the subinterfaces??



interface GigabitEthernet4/0/1

description MPLSRBGOPE02: phy.Link to MPLSRBGOSwi02 (Gi4/0/1-Trunk)

no ip address

load-interval 30


negotiation auto

mpls mtu 1512



interface GigabitEthernet4/0/1.190

mplsrbgope02-test-76(config)#interface GigabitEthernet4/0/1.190

mplsrbgope02-test-76(config-subif)#mpls mtu ?

<64-1500> MTU (bytes)

mplsrbgope02-test-76(config-subif)#mpls mtu 1512


% Invalid input detected at '^' marker.


  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
rabeder Mon, 06/25/2007 - 01:10
User Badges:


thanks for answer -

... andi it does mean that it is automaticlly

active on the eth subinterfaces ???

(mpls mtu 1512)


This Discussion