Information Technology Reference
In-Depth Information
Example 8-69
BGP Summary Table on R2
R2#show ip bgp summary
BGP router identifier 192.168.100.2, local AS number 65000
BGP table version is 5, main routing table version 5
4 network entries and 7 paths using 668 bytes of memory
3 BGP path attribute entries using 180 bytes of memory
2 BGP AS-PATH entries using 48 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 activity 4/28 prefixes, 7/0 paths, scan interval 60 secs
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
192.168.24.4 4 65001 16 14 5 0 0 00:09:45 3
192.168.25.5 4 65001 16 17 5 0 0 00:09:50 3
192.168.100.1 4 65000 22 22 0 0 0 never Idle
192.168.100.3 4 65000 14 16 5 0 0 00:09:06 1
Example 8-70 shows the new BGP RIB on R1. Note that prefix 192.168.200.0 is received
from member AS 65001, because R1 has no sessions with R3 or R2. This is fine, because
R3 is the next hop for both BGP and IGP. Traffic is forwarded directly to R3.
Example 8-70
BGP RIB on R1
R1#show ip bgp
BGP table version is 17, local router ID is 192.168.100.1
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 172.16.0.0 192.168.18.8 0 0 200 i
* 192.168.200.0 192.168.100.3 0 100 0 (65001 65000) i
*> 192.168.100.3 0 100 0 (65001 65000) i
* 192.168.201.0 192.168.100.6 0 100 0 (65001) i
*> 192.168.100.6 0 100 0 (65001) i
* 192.168.202.0 192.168.100.7 0 100 0 (65001) i
*> 192.168.100.7 0 100 0 (65001) i
Figure 8-15 shows the current topology.
