From: Mohamed (nmohamed@cisco.com)
Date: Tue May 18 2004 - 01:50:08 GMT-3
Hi Richard,
I couldnot understand the scenario-pls see comments inline..
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Richard Dumoulin
Sent: Monday, May 17, 2004 11:55 PM
To: ccielab@groupstudy.com
Subject: InternetworkExpert Lab15 6.5 BGP
Hello group,
Suppose the following topology:
R4 - -- ----- -- - R3
- -
- -
isdn--> - -
- R5
(Sorry for the bad drawing)
There is EIGRP between R4 and R3
And OSPF between R4-R5 and R5-R3.
There is also mutual redistribution on R4 and R3 between OSPF and EIGRP.
There is also IBGP between R4-R3-R5 full mesh.
The requirement is that BGP does not initiate the isdn line. So I have
configured R4-R5 BGP session between their respective loopbacks.
Can you pls tell me how does this helps BGP not to initiate the isdn
line ???
Both loopbacks are under OSPF. I have made R4 prefer to go via R3 to
reach R5's loopback with a distance command.
Could I know how exactly you did it ?
I am trying to do the same with R5 but there is no way R5 will prefer
an external OSPF route from R3 over an Interarea route from R4 even if
the Interarea route has a higher admin distance !!!
The only way it works is to configure and admin distance of 255 for R4's
loopback if it comes from R4. but then if R4-R3 link breaks the peering
session between R4 and R5 won't work :((
Could anyone who has done this lab tell me how he did ?!?!?
Thank you
--Richard
Thanks
Mohamed.
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