From: Nick Shah (nshah@xxxxxxxxxxxxxx)
Date: Sat Jun 15 2002 - 19:41:58 GMT-3
Chenyan,
BGP wont accept routes learned by BGP to form BGP sessions ...(confusing :)
But, if you need to form iBGP sessions, then either all of these routers
should be *physical* full mesh, in which case all of them should have
connection with each other (R1 --R2, R1--R3, R1--R4 etc) . Otherwise for a
*logical* mesh they have to know each other's interface or loopback address
(whichever is the update soruce of bgp session) via either an IGP or STATIC
route.
So even if you have network command for the route to remote router, the
session wont come up ... Why ? because the TCP session *has* to exist b4
even sending the route advertised by network command.
rgds
Nick
----- Original Message -----
From: chenyan <chenyan@deeptht.com.cn>
To: ccielab <ccielab@groupstudy.com>
Sent: Sunday, June 16, 2002 12:20 AM
Subject: ibgp problem with network command
> R1---R2---R3---R4
> In this topology all of them are connected side by side with ibgp full
meshed, and I used only network commands and physical interface, but R1 cant
reach R4 and R4 cant reach R1, I want to why?
> Thanks.
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