[nsp] increased Ethernet MTU on 7200

[Stefan Stefanov]

Been through this pain some time ago....

On IO-2FE you can have 1528 bytes of max MTU. To achieve this you have
to create a 802.1q vlan sub-interface. Without this you are bound to
1524 bytes.

This should be sufficient for MPLS + ATOM over FastEthernet in most
cases (1500 bytes customer MTU with Frame Relay, HDLC and 802.1q
encapsulations).

On this controller you can see the maximum MTU with the show contr fa0/0
and search for max_mtu:

rtr>sh controllers fa0/1 | inc max_mtu
  max_mtu=1528

Hope this helps.

Stefan

On вт, 2003-05-27 at 11:37, Rainer wrote:
> Hello,
> 
> is it possible to increase the MTU on any Ethernet interface available
> for 7200 routers? Searching cisco.com or googling around didn't turn up
> anything helpful.
> 
> So far I had no luck with io-2fe, io-1fe-tx-isl and pa-1fa-tx-isl.
> 
> 
> Rainer
> 
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Best Regards,

Stefan Stefanov
CTO
Orbitel, Inc.
tel.: +359 2 937 07 20 fax: +359 2 980 42 58