Information Technology Reference
In-Depth Information
Step 12: Move R1 from Member AS 100 to Member AS 65000
Move R1 from member AS 100 to member AS 65000. This removes member AS 100 from
the topology, which is service-affecting between AS 200 and confederation 100, unless
redundant connections exist. Example 8-42 shows the new BGP configurations on R1.
Example 8-42
BGP Configurations on R1
router bgp 65000
no synchronization
bgp router-id 192.168.100.1
bgp log-neighbor-changes
bgp confederation identifier 100
bgp confederation peers 65001
neighbor Internal peer-group
neighbor Internal remote-as 65000
neighbor Internal update-source Loopback0
neighbor 192.168.14.4 remote-as 65001
neighbor 192.168.15.5 remote-as 65001
neighbor 192.168.18.8 remote-as 200
neighbor 192.168.100.2 peer-group Internal
neighbor 192.168.100.3 peer-group Internal
no auto-summary
Step 13: Update the Peering with R1
On R4 and R5, update the peerings with R1. Example 8-43 shows the new BGP configura-
tions on R4. Similar changes are made to R5 (not shown). Now you can remove member
AS 100 from the peer list.
Example 8-43
BGP Configurations on R4
router bgp 65001
no synchronization
bgp router-id 192.168.100.4
bgp log-neighbor-changes
bgp confederation identifier 100
bgp confederation peers 65000
neighbor Internal peer-group
neighbor Internal remote-as 65001
neighbor Internal update-source Loopback0
neighbor 192.168.14.1 remote-as 65000
neighbor 192.168.24.2 remote-as 65000
neighbor 192.168.100.5 peer-group Internal
neighbor 192.168.100.6 peer-group Internal
neighbor 192.168.100.7 peer-group Internal
no auto-summary
