HPE 5800 Series Configuration Manual page 253

[SwitchA-bgp] peer 2.0.2.2 next-hop-local
# Configure Switch A to redistribute OSPF routes.
[SwitchA-bgp] import-route ospf
[SwitchA-bgp] quit
# When the two links between Switch A and Switch C are both up, Switch C adopts the link
Switch A<—>Switch B<—>Switch C to exchange packets with network 1.1.1.0/24. (Set a
higher MED value for route 1.1.1.0/24 sent to peer 2.0.2.2 on Switch A.)
Create ACL 2000 to permit 1.1.1.0/24 to pass.
[SwitchA] acl number 2000
[SwitchA-acl-basic-2000] rule permit source 1.1.1.0 0.0.0.255
[SwitchA-acl-basic-2000] quit
Create two route policies, apply_med_50 and apply_med_100. Policy apply_med_50
sets the MED for route 1.1.1.0/24 to 50. Policy apply_med_100 sets that 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 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] peer 3.0.2.2 route-policy apply_med_50 export
[SwitchA-bgp] peer 2.0.2.2 route-policy apply_med_100 export
# Configure BFD over the link to peer 3.0.2.2 so that when the link Switch A<—>Switch
B<—>Switch C fails, BFD can quickly detect the failure and notify it to BGP, and then the link
Switch A<—>Switch D<—>Switch C takes effect immediately.
[SwitchA-bgp] peer 3.0.2.2 bfd
# Establish an EBGP connection between Switch A and Switch E.
[SwitchA-bgp] peer 30.1.1.2 as-number 100
[SwitchA-bgp] quit
Configure BGP on Switch C:
4.
# Establish two IBGP connections between Switch A and Switch C.
<SwitchC> system-view
[SwitchC] bgp 200
[SwitchC-bgp] peer 3.0.1.1 as-number 200
[SwitchC-bgp] peer 2.0.1.1 as-number 200
# Configure BFD over the link to peer 3.0.1.1 so that when the link Switch A<—>Switch
B<—>Switch C fails, BFD can quickly detect the failure and notify it to BGP, and then the link
Switch A<—>Switch D<—>Switch C takes effect immediately.
[SwitchC-bgp] peer 3.0.1.1 bfd
# Configure a preference of 140 for the IBGP routes on Switch C.
[SwitchC-bgp] preference 255 140 130
[SwitchC-bgp] quit
Configure BGP on Switch E:
5.
# Establish an EBGP connection between Switch A and Switch E.
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