[cisco-bba] 'mtu' versus 'ip mtu'

Arie Vayner ariev at vayner.net
Tue Dec 2 12:23:46 EST 2008


Frank,

This is a good reference:
http://www.cisco.com/en/US/docs/ios/12_2sb/feature/guide/newmtu.html

Arie

On Tue, Dec 2, 2008 at 11:14 AM, Frank Bulk <frnkblk at iname.com> wrote:

> I 'upgraded' from 12.4(19b) to 12.2(SB11)31 this morning and rancid is
> showing me that IOS automatically added 'ip mtu 1492' to my interface.
>
> I already had the following in there:
>   mtu 1492
>   ip tcp adjust-mss 1452
>   ppp mtu adaptive
>
> Do I need to set my ip mtu to some other value?
>
> Frank
>
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