RE: BGP update-source

From: Jason Sinclair (sinclairj@xxxxxxxxxxxxxxx)
Date: Thu May 02 2002 - 21:32:47 GMT-3


   
Peter,

Are you changing your remote peer statement to the loopback IP address when
you use the loops as the update source?

Regards,

Jason Sinclair CCIE #9100
Manager, Network Control Centre
POWERTEL
Ground Level, 55 Clarence Street,
SYDNEY NSW 2000
AUSTRALIA
office: + 61 2 8264 3820
mobile: + 61 416 105 858
* sinclairj@powertel.com.au

                -----Original Message-----
                From: peter brown [mailto:pita40@hotmail.com]
                Sent: Friday, 3 May 2002 10:01
                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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