From: Ian.C.Stong@xxxxxxxxxxxxxxx
Date: Fri May 03 2002 - 08:48:46 GMT-3
Harish is correct of course. If you use update-source loopback 0 for
your IBGP peers that's fine - but you need to make sure the loopback
addresses are reachable (i.e. in the routing tables) so you can peer
with each other. If they are not you will need to get them in your
routing table (redistribution, network statements, statics, etc).
Ian
-----Original Message-----
From: harish.dv [mailto:harish.dv@peakxv.net]
Sent: Thursday, May 02, 2002 9:13 PM
To: mjia
Cc: ccielab; nobody; pita40
Subject: RE: BGP update-source
ebgp multihop is for ebgp only, not ibgp.
Harish
"Michael Jia"
<mjia@cisco.com> To: "peter brown"
<pita40@hotmail.com>, <ccielab@groupstudy.com>
Sent by: cc:
nobody@groupstudy Subject: RE: BGP
update-source
.com
05/02/2002 05:23
PM
Please respond to
"Michael Jia"
Use ebgp multi-hop in neighbor statement.
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> peter brown
> Sent: Thursday, May 02, 2002 5:01 PM
> To: ccielab@groupstudy.com
> Subject: BGP update-source
>
>
> Hello,
>
> I notice that when I use nei x.x.x.x update-source lo0 on both
> side of ibgp
> nei that are directly connected they loose tcp connection with
> each other.
> When I remove update-source statement from one nei and use the
> physical int.
> they are able to establish tcp connection. Why is this the case. Are
you
> only suppose to use it only on side between two nei. Below is the
config.
>
> Router A
> interface Loopback0
> ip address 40.40.40.4 255.255.255.0
> no ip directed-broadcast
>
> interface Serial0
> ip address 10.1.1.4 255.255.255.0
> no ip directed-broadcast
>
> router bgp 50
> neighbor 10.1.1.1 remote-as 50
> neighbor 10.1.1.1 update-source Loopback0
> no auto-summary
>
>
> Router Binterface Loopback0
> ip address 10.10.10.1 255.255.255.0
> no ip directed-broadcast
>
> interface Serial0
> ip address 10.1.1.1 255.255.255.0
> no ip directed-broadcast
>
> router bgp 50
> neighbor 10.1.1.4 remote-as 50
> neighbor 10.1.1.4 update-source Loopback0
> no auto-summary
> no ip mroute-cache
>
>
>
>
>
>
>
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