3Com S7906E Configuration Manual page 832

[SwitchB-bgp] quit
# Configure Switch C.
[SwitchC] bgp 200
[SwitchC-bgp] peer 193.1.1.1 as-number 100
[SwitchC-bgp] peer 195.1.1.1 as-number 200
[SwitchC-bgp] quit
# Configure Switch D.
[SwitchD] bgp 200
[SwitchD-bgp] peer 194.1.1.2 as-number 200
[SwitchD-bgp] peer 195.1.1.2 as-number 200
[SwitchD-bgp] quit
4) Configure attributes for route 1.0.0.0/8, making Switch D give priority to the route learned from
Switch C.
Configure a higher MED value for the route 1.0.0.0/8 advertised from Switch A to peer 192.1.1.2.
# Define an ACL numbered 2000 to permit route 1.0.0.0/8.
[SwitchA] acl number 2000
[SwitchA-acl-basic-2000] rule permit source 1.0.0.0 0.255.255.255
[SwitchA-acl-basic-2000] quit
# Define two routing policies, apply_med_50, which sets the MED for route 1.0.0.0/8 to 50, and
apply_med_100, which sets the MED for route 1.0.0.0/8 to 100.
[SwitchA] route-policy apply_med_50 permit node 10
[SwitchA-route-policy] if-match acl 2000
[SwitchA-route-policy] apply cost 50
[SwitchA-route-policy] quit
[SwitchA] route-policy apply_med_100 permit node 10
[SwitchA-route-policy] if-match acl 2000
[SwitchA-route-policy] apply cost 100
[SwitchA-route-policy] quit
# Apply routing policy apply_med_50 to the route advertised to peer 193.1.1.2 (Switch C), and
apply_med_100 to the route advertised to peer 192.1.1.2 (Switch B).
[SwitchA] bgp 100
[SwitchA-bgp] peer 193.1.1.2 route-policy apply_med_50 export
[SwitchA-bgp] peer 192.1.1.2 route-policy apply_med_100 export
[SwitchA-bgp] quit
# Display the BGP routing table on Switch D.
[SwitchD] display bgp routing-table
Total Number of Routes: 2
BGP Local router ID is 194.1.1.1
Status codes: * - valid, > - best, d - damped,
h - history,
Origin : i - IGP, e - EGP, ? - incomplete
Network
i - internal, s - suppressed, S - Stale
NextHop MED
1-63
LocPrf PrefVal Path/Ogn