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Re: IP Routing problem after enabling MPLS?

  • From: Garry Glendown <garry@regio.net>
  • Date: Wed, 15 Sep 2004 16:34:45 +0200
  • CC: mpls-ops@mplsrc.com
  • Resent-Date: Wed, 15 Sep 2004 11:13:05 -0400
  • User-Agent: Mozilla Thunderbird 0.8 (Windows/20040913)

Pelle wrote:
> On 2004-09-15 14:29, Garry Glendown wrote:
> 
>>> Do you also have Fast Ethernet Port on this? If yes, whether that 
>>> allows change of MTU.
>>
>>
>>
>> Yes it does. No it doesn't.
> 
> 
> You don't need to. It's the MPLS NTU that counts. (A bit strange? Yes...)
> 
> On a 7206 running 12.2.14S5:
> 
> interface FastEthernet0/0
> [snip]
>  mpls label protocol ldp
>  tag-switching mtu 1600
>  tag-switching ip
> 
> pe#sh mpls int fa0/0 det
> Interface FastEthernet0/0:
>         IP labeling enabled (ldp)
>         LSP Tunnel labeling not enabled
>         BGP tagging not enabled
>         MPLS operational
>         Optimum Switching Vectors:
>           IP to MPLS Turbo Vector
>           MPLS Turbo Vector
>         Fast Switching Vectors:
>           IP to MPLS Fast Switching Vector
>           MPLS Turbo Vector
>         MTU = 1600
> 
> pe#sh ip int fa0/0
> FastEthernet0/0 is up, line protocol is up
> [snip]
>   MTU is 1500 bytes
> 
> BTW, the FastEthernet-port is on I/O-module.
> 
> The other end is on a 8FE-TX-RJ45-B LineCard on a GSR.
> 
> Per
> 
> 

Nope - didn't help ... I re-configured the whole set of routers with the 
"tag-sw mtu 1600" - same effect ...

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