From: David Prall (dcp@dcptech.com)
Date: Fri Aug 22 2008 - 14:27:52 ART
You need to enable PMTUD within BGP. In 12.2SB code this can be configured
on a per neighbor basis. In other code it is within the bgp process for all
neighbors.
David
-- http://dcp.dcptech.com> -----Original Message----- > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On > Behalf Of Hyunseog Ryu > Sent: Friday, August 22, 2008 1:10 PM > To: Cisco certification > Subject: BGP MTU issue ? > > Hi Guys, > > I would like to form BGP session between remote locations. > > RTR A (GigE MTU 9000 bytes) ---- (GigE MTU 9000 bytes) RTR B (GigE MTU > 1500 )--- (GigE MTU 1500 ) RTR C (GigE MTU 9000) --- (GigE > MTU 9000) RTR D > > > With this connection, I would like to form EBGP multihop > session between > RTR A and RTR D. > But when I setup, it would not come up because it uses MTU 9000 bytes > for BGP update packet, but the circuit between RTR B and RTR > C has 1500 > MTU limitation. > I don't have control over those two routers. > Is there any way for BGP to use lower MTU for specific session only ? > I appreciate your help. > Thanks. > > Hyun > > > Blogs and organic groups at http://www.ccie.net > > ______________________________________________________________ > _________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html
Blogs and organic groups at http://www.ccie.net
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