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

Leonardo Souza nomeiodabalada at yahoo.com.br
Tue Dec 2 12:10:22 EST 2008

You would need if you had an IP MTU mismatch between OSPF neighbors.
I think that the change was only cosmetic, because normally the IP MTU refers to the physical MTU. 

--- Em ter, 2/12/08, Frank Bulk <frnkblk at iname.com> escreveu:

De: Frank Bulk <frnkblk at iname.com>
Assunto: [cisco-bba] 'mtu' versus 'ip mtu'
Para: cisco-bba at puck.nether.net
Data: Terça-feira, 2 de Dezembro de 2008, 7:14

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?


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