From: Bradford Hung (bradford.hung@gmail.com)
Date: Wed Jan 23 2008 - 02:09:50 ARST
Hi,
R7 is connected to R2 and BGP between running between them
"133.1.118.0/24" and "133.1.119.0/24" are both received from R2, but no
idea whay " 133.1.118.0/24" is not selected as best path. Please help to
advise what is the problem.
r7#sho ip bgp sum
BGP router identifier 144.7.7.7 , local AS number 65002
BGP table version is 12, main routing table version 12
13 network entries and 13 paths using 1729 bytes of memory
7 BGP path attribute entries using 540 bytes of memory
4 BGP AS-PATH entries using 96 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
2 received paths for inbound soft reconfiguration
BGP activity 323/629 prefixes, 526/513 paths, scan interval 60 secs
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down
State/PfxRcd
133.1.27.2 4 100 69894 69402 12 0 0 00:00:14 11
r7#sho ip bgp neighbors 133.1.27.2 received-routes
BGP table version is 12, local router ID is 144.7.7.7
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
*> 133.0.0.0 133.1.27.2 0 100 65004 ?
*> 133.1.0.0 133.1.27.2 0 100 65001 ?
*> 133.1.16.0/24 133.1.27.2 0 100 ?
*> 133.1.27.0/24 133.1.27.2 200 0 100 ?
*> 133.1.48.0/24 133.1.27.2 0 100 ?
*> 133.1.59.0/24 133.1.27.2 0 100 ?
* 133.1.118.0/24 133.1.27.2 0 100 65004 i
*> 133.1.119.0/24 133.1.27.2 0 100 65005 i
*> 144.6.0.0 133.1.27.2 0 100 65001 ?
* 144.6.6.6/32 133.1.27.2 0 100 65001 i
*> 144.8.0.0 133.1.27.2 0 100 65004 ?
*> 144.9.0.0 133.1.27.2 0 100 65004 ?
*> 144.11.0.0 133.1.27.2 0 100 65004 ?
Total number of prefixes 13
r7#
r7#
r7#
r7#sho ip bgp 133.1.118.0/24
BGP routing table entry for 133.1.118.0/24, version 0
Paths: (1 available, no best path)
Not advertised to any peer
100 65004, (received-only)
133.1.27.2 from 133.1.27.2 (144.2.2.2)
Origin IGP, localpref 100, valid, external
r7#sho ip bgp 133.1.119.0/24
BGP routing table entry for 133.1.119.0/24, version 8
Paths: (1 available, best #1, table Default-IP-Routing-Table)
Not advertised to any peer
100 65005, (received & used)
133.1.27.2 from 133.1.27.2 (144.2.2.2)
Origin IGP, localpref 100, valid, external, best
r7#sho ip route 133.1.27.2
Routing entry for 133.1.27.0/24
Known via "connected", distance 0, metric 0 (connected, via interface)
Routing Descriptor Blocks:
* directly connected, via FastEthernet0/0
Route metric is 0, traffic share count is 1
Thx
This archive was generated by hypermail 2.1.4 : Fri Feb 01 2008 - 10:38:00 ARST