346
[SwitchA-bgp-default-ipv4] peer 2.0.2.2 enable
[SwitchA-bgp-default-ipv4] quit
[SwitchA-bgp-default] quit
# Create IPv4 basic ACL 2000 to permit 1.1.1.0/24 to pass.
[SwitchA] acl basic 2000
[SwitchA-acl-ipv4-basic-2000] rule permit source 1.1.1.0 0.0.0.255
[SwitchA-acl-ipv4-basic-2000] quit
# Create two routing policies to set the MED for route 1.1.1.0/24. The policy apply_med_50
sets the MED to 50, and the policy apply_med_100 sets the MED to 100.
[SwitchA] route-policy apply_med_50 permit node 10
[SwitchA-route-policy-apply_med_50-10] if-match ip address acl 2000
[SwitchA-route-policy-apply_med_50-10] apply cost 50
[SwitchA-route-policy-apply_med_50-10] quit
[SwitchA] route-policy apply_med_100 permit node 10
[SwitchA-route-policy-apply_med_100-10] if-match ip address acl 2000
[SwitchA-route-policy-apply_med_100-10] apply cost 100
[SwitchA-route-policy-apply_med_100-10] quit
# Apply routing policy apply_med_50 to routes outgoing to peer 3.0.2.2, and apply routing
policy apply_med_100 to routes outgoing to peer 2.0.2.2.
[SwitchA] bgp 200
[SwitchA-bgp-default] address-family ipv4 unicast
[SwitchA-bgp-default-ipv4] peer 3.0.2.2 route-policy apply_med_50 export
[SwitchA-bgp-default-ipv4] peer 2.0.2.2 route-policy apply_med_100 export
[SwitchA-bgp-default-ipv4] quit
# Enable BFD for peer 3.0.2.2.
[SwitchA-bgp-default] peer 3.0.2.2 bfd
[SwitchA-bgp-default] quit
4. Configure BGP on Switch C:
# Establish two IBGP connections to Switch A.
<SwitchC> system-view
[SwitchC] bgp 200
[SwitchC-bgp-default] peer 3.0.1.1 as-number 200
[SwitchC-bgp-default] peer 2.0.1.1 as-number 200
[SwitchC-bgp-default] address-family ipv4 unicast
[SwitchC-bgp-default-ipv4] peer 3.0.1.1 enable
[SwitchC-bgp-default-ipv4] peer 2.0.1.1 enable
[SwitchC-bgp-default-ipv4] quit
# Enable BFD for peer 3.0.1.1.
[SwitchC-bgp-default] peer 3.0.1.1 bfd
[SwitchC-bgp-default] quit
[SwitchC] quit
Verifying the configuration
# Display detailed BFD session information on Switch C.
<SwitchC> display bfd session verbose
Total Session Num: 1 Up Session Num: 1 Init Mode: Active
IPv4 Session Working Under Ctrl Mode:
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