H3C Technologies H3C S5560 Series Switches - Manual (Page 297)

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Figure 66 Network diagram
Requirements analysis
On Switch A:
• Establish EBGP connections with Switch B and Switch C.
• Configure BGP to advertise network 8.1.1.0/24 to Switch B and Switch C, so that Switch B and
Switch C can access the internal network connected to Switch A.
On Switch B:
• Establish an EBGP connection with Switch A and an IBGP connection with Switch C.
• Configure BGP to advertise network 9.1.1.0/24 to Switch A, so that Switch A can access the intranet
through Switch B.
• Configure a static route to interface loopback 0 on Switch C (or use a routing protocol like OSPF)
to establish the IBGP connection.
On Switch C:
• Establish an EBGP connection with Switch A and an IBGP connection with Switch B.
• Configure BGP to advertise network 9.1.1.0/24 to Switch A, so that Switch A can access the intranet
through Switch C.
• Configure a static route to interface loopback 0 on Switch B (or use another protocol like OSPF) to
establish the IBGP connection.
Configure load balancing on Switch A.
Configuration procedure
1. Configure IP addresses for interfaces. (Details not shown.)
2. Configure BGP connections:
# Configure Switch A.
<SwitchA> system-view
[SwitchA] bgp 65008
[SwitchA-bgp] router-id 1.1.1.1
[SwitchA-bgp] peer 3.1.1.1 as-number 65009
[SwitchA-bgp] peer 3.1.2.1 as-number 65009
[SwitchA-bgp] address-family ipv4 unicast