H3C Technologies H3C S10500 Series Switches - Manual (Page 380)

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Figure 118 Routing policy configuration to filter received BGP routes
Configuration procedure
1. Configure IP addresses for the interfaces. (Details not shown)
2. Configure BGP.
# Configure Switch A.
<SwitchA> system-view
[SwitchA] bgp 100
[SwitchA-bgp] router-id 1.1.1.1
[SwitchA-bgp] peer 1.1.1.2 as-number 300
# Configure Switch B.
<SwitchB> system-view
[SwitchB] bgp 200
[SwitchB-bgp] router-id 2.2.2.2
[SwitchB-bgp] peer 1.1.2.2 as-number 300
# Configure Switch C.
<SwitchC> system-view
[SwitchC] bgp 300
[SwitchC-bgp] router-id 3.3.3.3
[SwitchC-bgp] peer 1.1.1.1 as-number 100
[SwitchC-bgp] peer 1.1.2.1 as-number 200
[SwitchC-bgp] peer 1.1.3.2 as-number 400
# Configure Switch D.
<SwitchD> system-view
[SwitchD] bgp 400
[SwitchD-bgp] router-id 4.4.4.4
[SwitchD-bgp] peer 1.1.3.1 as-number 300
[SwitchD-bgp] quit
# On Switch A, inject routes 4.4.4.4/24, 5.5.5.5/24, and 6.6.6.6/24 to BGP.
[SwitchA-bgp] network 4.4.4.4 24
[SwitchA-bgp] network 5.5.5.5 24