From: Tarek Sabry (tsabry@xxxxxxxxxxxxxxxxxxx)
Date: Wed Mar 27 2002 - 22:34:52 GMT-3
Hi
I have the following:
r8-------r3(rr)--------r2
|
eBGP
|
r7-------|
or basically r3 acting as a RR between r8 and r2 (iBGP) and also having eBGP
with r7.
Now I am trying to do this the hard way (use syncronization) for this lab.
On r2 I have no problem seeing the BGP routes that were originally imported
from r7.
The problem is that on r2 I cannot get the BGP routes that are reflected
from r3 to appear as "best path". Basically they appear as "not syncronised"
as you see below. I think that the reason for this is the fact that the BGP
router ID of the original route is lost by the reflection process and has
been replaced by "Originator: 10.10.0.8", whci is the ID of the reflector!
This makes the BGP RID different than the OSPF RID (the latter being that of
r8)! How can I solve this problem by still not changing the synchronisation?
Or can't I?
As you can see below also, the RID of the reflector is the same for BGP and
OSPF.
Thanks
Tarek
r2#
r2#
r2#sh ip bgp 88.0.0.0
BGP routing table entry for 88.0.0.0/8, version 0
Paths: (1 available, no best path)
Not advertised to any peer
Local
10.10.0.8 (metric 70) from 172.16.1.3 (200.0.0.3)
Origin IGP, metric 0, localpref 100, valid, internal, not synchronized
Originator: 10.10.0.8, Cluster list: 200.0.0.3
r2#
r2#sh ip route 88.0.0.0
Routing entry for 88.0.0.0/8
Known via "ospf 1", distance 110, metric 71, type inter area
Last update from 172.16.1.3 on TokenRing0, 01:41:37 ago
Routing Descriptor Blocks:
* 172.16.1.3, from 10.10.0.8, 01:41:37 ago, via TokenRing0
Route metric is 71, traffic share count is 1
r2#
--------------------------------
r3#
r3#
r3#
r3#sh ip bgp
BGP table version is 17, local router ID is 200.0.0.3
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*>i88.0.0.0 10.10.0.8 0 100 0 i
r3#
r3#
r3#
r3#sh ip ospf
Routing Process "ospf 1" with ID 200.0.0.3
Supports only single TOS(TOS0) routes
It is an area border and autonomous system boundary router
...
...
r3#
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