Information Technology Reference
In-Depth Information
Example 4-26
BGP RIB on R1 (Continued)
Network Next Hop Metric LocPrf Weight Path
* i172.16.0.0 192.168.35.5 100 0 200 400 i
*>i 192.168.24.4 100 0 200 300 i
*>i172.16.1.0/24 192.168.24.4 100 0 ?
*>i172.16.2.0/24 192.168.35.5 100 0 ?
Example 4-27 shows the BGP RIB on R2. Note that communities of 100:200 and
no-
export
are attached to the injected prefixes.
Example 4-27
BGP RIB on R2
R2#show ip bgp
BGP table version is 34, local router ID is 192.168.24.2
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
* i172.16.0.0 192.168.35.5 100 0 200 400 i
*> 192.168.24.4 0 200 300 i
*> 172.16.1.0/24 192.168.24.4 0 ?
* i 192.168.35.5 0 ?
*>i172.16.2.0/24 192.168.35.5 100 0 ?
R2#show ip bgp 172.16.1.0
BGP routing table entry for 172.16.1.0/24, version 34
Paths: (2 available, best #1, table Default-IP-Routing-Table, not advertised to
EBGP peer)
Advertised to non peer-group peers:
192.168.12.1 192.168.23.3
Local, (aggregated by 200 192.168.46.4), (injected path from 172.16.0.0/16)
192.168.24.4 from 192.168.24.4 (192.168.46.4)
Origin incomplete, localpref 100, valid, external, best
Community: 100:200 no-export
Local, (aggregated by 200 192.168.57.5), (injected path from 172.16.0.0/16)
192.168.35.5 (metric 20) from 192.168.23.3 (192.168.35.3)
Origin incomplete, localpref 100, valid, internal
Community: 100:200 no-export
R2#show ip bgp 172.16.2.0
BGP routing table entry for 172.16.2.0/24, version 32
Paths: (1 available, best #1, table Default-IP-Routing-Table, not advertised to
EBGP peer)
Not advertised to any peer
Local, (aggregated by 200 192.168.57.5)
192.168.35.5 (metric 20) from 192.168.23.3 (192.168.35.3)
Origin incomplete, localpref 100, valid, internal, best
Community: 100:200 no-export
