From: Todd, Douglas M. (DTODD@PARTNERS.ORG)
Date: Wed Feb 07 2007 - 19:50:00 ART
Hi:
Well - auto summary is not enabled here: If it was you would end up with the
following:
*> 10.0.0.0 0.0.0.0 5 32768 ?
*> 132.1.0.0 0.0.0.0 5 32768 ?
*> 149.1.0.0 0.0.0.0 5 32768 ?
*> 150.1.0.0 0.0.0.0 5 32768 ?
Where the network would fall on the classful boundry. The 149.1.0.0 must be a
local interface because it's being redistributed via the connected command.
DMT
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Mohammad
Saeed
Sent: Wednesday, February 07, 2007 5:13 PM
To: Bob Watson
Cc: Cisco certification
Subject: Re: no auto-summary under BGP
Hi,
Now here is the BGP config of R5 and I have added no auto-summary in it but
still it has summary network address in its BGP table??? How R5 is getting this
149.1.0.0, I don't understand, can any one explain?
router bgp 100
no synchronization
bgp router-id 150.1.5.5
bgp log-neighbor-changes
redistribute connected route-map CONNECTEDTOBGP neighbor 149.1.0.6 remote-as
100 neighbor 149.1.0.6 route-reflector-client neighbor 149.1.0.8 remote-as 100
neighbor 149.1.0.8 route-reflector-client neighbor 149.1.254.3 remote-as 200
neighbor 150.1.4.4 remote-as 100 neighbor 150.1.4.4 update-source Loopback0
neighbor 150.1.4.4 route-reflector-client no auto-summary !
and here is partial out put of bgo table of R5.....
R5# sh ip bgp
* 149.1.254.3 0 200 54 i
*>i119.0.0.0 149.1.0.6 0 100 0 54 i
* 149.1.254.3 0 200 54 i
*> 149.1.0.0/24 0.0.0.0 0 32768 ?
*> 149.1.7.0/24 149.1.254.3 0 200 300 ?
*>i149.1.8.0/24 149.1.0.8 0 100 0 ?
r>i149.1.44.0/24 150.1.4.4 0 100 0 ?
*> 149.1.77.0/24 149.1.254.3 0 200 300 ?
*>i149.1.88.0/24 149.1.0.8 0 100 0 ?
*> 149.1.123.0/24 149.1.254.3 0 200 300 ?
*> 149.1.127.0/24 149.1.254.3 0 200 300 ?
Regards,
Mohammad Zahed Saeed
On 2/6/07, Mohammad Saeed <mzsaeed@gmail.com> wrote:
> Thank you very much Bob....
>
> Regards,
>
> Mohammad Zahid Saeed
>
> On 2/6/07, Bob Watson <watson.robert@gmail.com> wrote:
> > none as your not advertising or redistributing any subprefix routes
> >
> > from the doccd
> >
> > auto-summary (BGP)
> >
> > To configure automatic summarization of subnet routes into
> > network-level routes, use the auto-summary command in address family
> > or router configuration mode. To disable automatic summarization and
> > send subprefix routing information across classful network
> > boundaries, use the no form of this command.
> >
> >
> > On 2/6/07, Mohammad Saeed <mzsaeed@gmail.com> wrote:
> > >
> > > Hello Every Body,
> > >
> > > Can some body tell me the what differnce this no auto-summary will
> > > make under bgp configuration...
> > >
> > > conf t
> > > router bgp 100
> > > bgp router-id 150.1.5.5
> > > no synch
> > > neighbor 149.1.254.3 remote-as 200 neighbor 150.1.4.4 remote-as
> > > 100 neighbor 150.1.4.4 update-source lo0 neighbor 150.1.4.4
> > > route-reflector-client neighbor 149.1.0.6 remote-as 100 neighbor
> > > 149.1.0.6 route-reflector-client neighbor 149.1.0.8 remote-as 100
> > > neighbor 149.1.0.8 route-reflector-client
> > > no auto-summary ??????
> > > end
> > > wr
> > >
> > > Regards,
> > >
> > > Mohammad Zahed Saeed
> > >
> > >
> > ____________________________________________________________________
> > ___
> > > Subscription information may be found at:
> > > http://www.groupstudy.com/list/CCIELab.html
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