H3C Technologies H3C S7500E Series Switches - Manual (Page 265)

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# Configure Switch C.
system-view
[SwitchC] bgp 65003
[SwitchC-bgp] router-id 3.3.3.3
[SwitchC-bgp] confederation id 200
[SwitchC-bgp] confederation peer-as 65001 65002
[SwitchC-bgp] peer 10.1.2.1 as-number 65001
[SwitchC-bgp] quit
3) Configure iBGP connections in AS65001.
# Configure Switch A.
[SwitchA] bgp 65001
[SwitchA-bgp] peer 10.1.3.2 as-number 65001
[SwitchA-bgp] peer 10.1.3.2 next-hop-local
[SwitchA-bgp] peer 10.1.4.2 as-number 65001
[SwitchA-bgp] peer 10.1.4.2 next-hop-local
[SwitchA-bgp] quit
# Configure Switch D.
system-view
[SwitchD] bgp 65001
[SwitchD-bgp] router-id 4.4.4.4
[SwitchD-bgp] confederation id 200
[SwitchD-bgp] peer 10.1.3.1 as-number 65001
[SwitchD-bgp] peer 10.1.5.2 as-number 65001
[SwitchD-bgp] quit
# Configure Switch E.
system-view
[SwitchE] bgp 65001
[SwitchE-bgp] router-id 5.5.5.5
[SwitchE-bgp] confederation id 200
[SwitchE-bgp] peer 10.1.4.1 as-number 65001
[SwitchE-bgp] peer 10.1.5.1 as-number 65001
[SwitchE-bgp] quit
4) Configure the eBGP connection between AS100 and AS200.
# Configure Switch A.
[SwitchA] bgp 65001
[SwitchA-bgp] peer 200.1.1.2 as-number 100
[SwitchA-bgp] quit
# Configure Switch F.
system-view
[SwitchF] bgp 100
[SwitchF-bgp] router-id 6.6.6.6
[SwitchF-bgp] peer 200.1.1.1 as-number 200
[SwitchF-bgp] network 9.1.1.0 255.255.255.0
[SwitchF-bgp] quit
5) Verify above configuration
# Display the routing table on Switch B.
[SwitchB] display bgp routing-table