Information Technology Reference
In-Depth Information
This step completes the migration process. The topology is the final topology, as shown
earlier in Figure 8-4. In the next step, you verify the prefixes' reachability.
Step 14: Verify BGP Reachability for All Prefixes
Verify that all the sessions are up and that routes are properly received. The following
examples show some of the sample outputs.
Example 8-44 shows the BGP summary table on R1.
Example 8-44
BGP Summary Table on R1
R1#show ip bgp summary
BGP router identifier 192.168.100.1, local AS number 65000
BGP table version is 5, main routing table version 5
4 network entries and 8 paths using 708 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 4/8 prefixes, 8/0 paths, scan interval 60 secs
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
192.168.14.4 4 65001 23 22 5 0 0 00:13:26 2
192.168.15.5 4 65001 24 23 5 0 0 00:12:25 2
192.168.18.8 4 200 18 19 5 0 0 00:13:55 1
192.168.100.2 4 65000 19 18 5 0 0 00:13:58 2
192.168.100.3 4 65000 18 18 5 0 0 00:13:59 1
Example 8-45 shows the BGP summary table on R5.
Example 8-45
BGP Summary Table on R5
R5#show ip bgp summary
BGP router identifier 192.168.100.5, local AS number 65001
BGP table version is 16, main routing table version 16
4 network entries and 8 paths using 708 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 6/45 prefixes, 14/6 paths, scan interval 60 secs
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
192.168.15.1 4 65000 149 152 16 0 0 00:16:06 2
192.168.25.2 4 65000 145 152 16 0 0 01:08:20 2
192.168.100.4 4 65001 145 146 16 0 0 02:13:49 2
192.168.100.6 4 65001 138 146 16 0 0 02:13:56 1
192.168.100.7 4 65001 138 146 16 0 0 02:13:29 1
