3Com Switch 8800 Advanced Software V5 Configuration Guide

BGP Configuration Examples 455
[SwitchB-bgp] peer 200.1.1.2 as-number 65008
[SwitchB-bgp] peer 9.1.1.2 as-number 65009
[SwitchB-bgp] network 9.1.1.0 255.255.255.0
[SwitchB-bgp] quit
# Configure SwitchC
<SwitchC> system-view
[SwitchC] bgp 65009
[SwitchC-bgp] router-id 3.3.3.3
[SwitchC-bgp] peer 200.1.2.2 as-number 65008
[SwitchC-bgp] peer 9.1.1.1 as-number 65009
[SwitchC-bgp] network 9.1.1.0 255.255.255.0
[SwitchC-bgp] quit
# Display the routing table on Switch A.
[SwitchA] display bgp routing-table
Total Number of Routes: 3
BGP Local router ID is 1.1.1.1
Status codes: * - valid, > - best, d - damped,
h - history, i - internal, s - suppressed, S - Stale
Origin : i - IGP, e - EGP, ? - incomplete
Network NextHop MED LocPrf PrefVal Path/Ogn
*> 8.0.0.0 0.0.0.0 0 0 i
*> 9.1.1.0/24 200.1.1.1 0 0 65009i
* 200.1.2.1 0 0 65009i
Two routes to 9.1.1.0/24 are available, and the one with the next hop being
200.1.1.1 is the optimal because the ID of SwitchB is smaller.
3 Configure loading balancing
# Configure SwitchA
[SwitchA] bgp 65008
[SwitchA-bgp] balance 2
[SwitchA-bgp] quit
# Display the routing table on Switch A.
[SwitchA] display bgp routing-table
Total Number of Routes: 3
BGP Local router ID is 1.1.1.1
Status codes: * - valid, > - best, d - damped,
h - history, i - internal, s - suppressed, S - Stale
Origin : i - IGP, e - EGP, ? - incomplete
Network NextHop MED LocPrf PrefVal Path/Ogn
*> 8.0.0.0 0.0.0.0 0 0 i
*> 9.1.1.0/24 200.1.1.1 0 0 65009i
*> 200.1.2.1 0 0 65009i
The route 9.1.1.0/24 has two next hops 200.1.1.1 and 200.1.2.1, and both are
the optimal.