From: Victor Cappuccio (cvictor@protokolgroup.com)
Date: Thu Oct 12 2006 - 23:01:48 ART
Hi guys,
Can anyone please be so gentle in explaining me why this situation?
I have the following topology
R4 - R1 ---------- R2 ---------- R3 -------R5
R2 is the RR, in this configuration,
R1,R2,R3 are Internal Peers of As100, R4 is in As400 and R5 is in As500
I redistribute BGP information in R1 to the current IGP (OSPF), also changed
the Cluster-id on R2 to the same RID of R1, to make possible the
advertisement to R3, but router 3 does not advertise that information learn
form BGP to R5, also If I change R3 BGP RID to 1.1.1.1 (R1 OSPF Rids), the
route is never advertised from R2
I'm looking for other solution rather than using confederations to solve
this.
R2#show ip bgp 4.4.4.4
BGP routing table entry for 4.4.4.0/24, version 3
Paths: (1 available, best #1, table Default-IP-Routing-Table,
RIB-failure(17))
Not advertised to any peer
400, (Received from a RR-client)
150.1.123.1 (metric 64) from 150.1.123.1 (1.1.1.1)
Origin IGP, metric 0, localpref 100, valid, internal, synchronized,
best
R2#
R2#
R2#show ip bgp summ
BGP router identifier 2.2.2.2, local AS number 100
BGP table version is 3, main routing table version 3
1 network entries using 101 bytes of memory
1 path entries using 48 bytes of memory
1 BGP path attribute entries using 60 bytes of memory
1 BGP AS-PATH entries using 24 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 233 total bytes of memory
BGP activity 3/2 prefixes, 3/2 paths, scan interval 60 secs
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down
State/PfxRcd
150.1.123.1 4 100 23 20 3 0 0 00:01:52 1
150.1.123.3 4 100 19 26 3 0 0 00:00:12 0
R2#show ip bgp
BGP table version is 3, local router ID is 2.2.2.2
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
r>i4.4.4.0/24 150.1.123.1 0 100 0 400 i
R2#show ip bgp 4.4.4.4
BGP routing table entry for 4.4.4.0/24, version 3
Paths: (1 available, best #1, table Default-IP-Routing-Table,
RIB-failure(17))
Not advertised to any peer
400, (Received from a RR-client)
150.1.123.1 (metric 64) from 150.1.123.1 (1.1.1.1)
Origin IGP, metric 0, localpref 100, valid, internal, synchronized,
best
R2#show ip protocols | inc IGP synchronization is enabled
IGP synchronization is enabled
R3#show ip bgp
R3#show ip bgp summ
BGP router identifier 1.1.1.1, local AS number 100
BGP table version is 1, main routing table version 1
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down
State/PfxRcd
150.1.35.5 4 500 14 15 1 0 0 00:00:56 0
150.1.123.2 4 100 27 21 1 0 0 00:01:10 0
Many thanks
Victor.-
This archive was generated by hypermail 2.1.4 : Wed Nov 01 2006 - 07:29:05 ART