HP HPE FlexNetwork 7500 series Configuration Manual page 363

[SwitchA-bgp-default] primary-path-detect bfd echo
# Apply the routing policy to BGP FRR for BGP IPv4 unicast address family.
[SwitchA-bgp-default] address-family ipv4 unicast
[SwitchA-bgp-default-ipv4] fast-reroute route-policy frr
[SwitchA-bgp-default-ipv4] quit
[SwitchA-bgp-default] quit
# On Switch D, set the source address of BFD echo packets to 44.1.1.1.
[SwitchD] bfd echo-source-ip 44.1.1.1
# Create routing policy frr to set a backup next hop 3.3.3.3 (Switch C) for the route destined for
1.1.1.1/32.
[SwitchD] ip prefix-list abc index 10 permit 1.1.1.1 32
[SwitchD] route-policy frr permit node 10
[SwitchD-route-policy] if-match ip address prefix-list abc
[SwitchD-route-policy] apply fast-reroute backup-nexthop 3.3.3.3
[SwitchD-route-policy] quit
# Use echo-mode BFD to detect the connectivity to Switch A.
[SwitchD] bgp 200
[SwitchD-bgp-default] primary-path-detect bfd echo
# Apply the routing policy to BGP FRR for BGP IPv4 unicast address family.
[SwitchD-bgp-default] address-family ipv4 unicast
[SwitchD-bgp-default-ipv4] fast-reroute route-policy frr
[SwitchD-bgp-default-ipv4] quit
[SwitchD-bgp-default] quit
Verifying the configuration
# Display detailed information about the route to 4.4.4.4/32 on Switch A. The output shows the
backup next hop for the route.
[SwitchA] display ip routing-table 4.4.4.4 32 verbose
Summary count : 1
Destination: 4.4.4.4/32
Protocol: BGP
SubProtID: 0x2
Cost: 0
IpPre: N/A
Tag: 0
OrigTblID: 0x0
TableID: 0x2
NibID: 0x15000003
AttrID: 0x5
Flags: 0x10060
Label: NULL
BkLabel: NULL
Tunnel ID: Invalid
BkTunnel ID: Invalid
FtnIndex: 0x0
Connector: N/A
Process ID: 0
Age: 00h01m52s
Preference: 255
QosLocalID: N/A
State: Active Adv
OrigVrf: default-vrf
OrigAs: 200
LastAs: 200
Neighbor: 10.1.1.2
OrigNextHop: 10.1.1.2
RealNextHop: 10.1.1.2
BkNextHop: 30.1.1.3
Interface: Vlan-interface 100
BkInterface: Vlan-interface 200
TrafficIndex: N/A
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