Configuring Mpls L3Vpn Frr Through Ipv4 Route Backup For A Vpnv4 Route - HP FlexNetwork HSR6600 Configuration Manual

[PE2-route-policy] if-match ip address prefix-list abc
[PE2-route-policy] apply fast-reroute backup-nexthop 3.3.3.3
[PE2-route-policy] quit
# Use echo-mode BFD to detect the primary route connectivity.
[PE2] bgp 100
[PE2-bgp-default] primary-path-detect bfd echo
# Configure FRR for VPN instance vpn1 to use routing policy frr.
[PE2-bgp-default] ip vpn-instance vpn1
[PE2-bgp-default-vpn1] address-family ipv4 unicast
[PE2-bgp-default-ipv4-vpn1] fast-reroute route-policy frr
# Specify the preferred value as 200 for BGP routes received from CE 2. This value is greater
than the preferred value (0) for routes from PE 3, so PE 2 prefers the routes from CE 2.
[PE2-bgp-default-ipv4-vpn1] peer 10.1.1.1 preferred-value 200
[PE2-bgp-default-vpn1] quit
[PE2-bgp-default] quit
Verifying the configuration
# Display detailed information about the route to 4.4.4.4/32 on PE 2. The output shows the backup
next hop for the route.
[PE2] display ip routing-table vpn-instance vpn1 4.4.4.4 32 verbose
Summary Count : 1
Destination: 4.4.4.4/32
Protocol: BGP instance default
Process ID: 0
SubProtID: 0x2
Cost: 0
IpPre: N/A
Tag: 0
OrigTblID: 0x0
TableID: 0x102
NibID: 0x15000002
AttrID: 0x0
Flags: 0x10060
Label: NULL
BkLabel: 1275
Tunnel ID: Invalid
BkTunnel ID: 0x409
FtnIndex: 0x0
Connector: N/A
Configuring MPLS L3VPN FRR through IPv4 route backup
for a VPNv4 route
Network requirements
CE 1 and CE 2 belong to VPN 1.
Configure EBGP between CEs and PEs to exchange VPN routes.
Age: 01h54m24s
Preference: 10
QosLocalID: N/A
State: Active Adv
OrigVrf: vpn1
OrigAs: 300
LastAs: 300
Neighbor: 10.1.1.1
OrigNextHop: 10.1.1.1
RealNextHop: 10.1.1.1
BkNextHop: 172.3.1.3
Interface: GE1/1/2
BkInterface: GE1/1/3
TrafficIndex: N/A
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