HPE FlexFabric 5950 Series Configuration Manual page 303

Table 25 Interface and IP address assignment
Device
CE 1
PE 1
CE 2
C onfiguration procedure
5 1 4 B
1. Configure IP addresses and masks for interfaces as shown in
MPLS L3VPN. (Details not shown.)
For more information about configuring basic MPLS L3VPN, see "
L3VPN."
2. Configure MPLS L3VPN FRR on PE 2:
# Configure the source IP address of BFD echo packets as 12.1.1.1.
<PE2> system-view
[PE2] bfd echo-source-ip 12.1.1.1
# Create routing policy frr, and specify the backup next hop as 3.3.3.3 for the route to
4.4.4.4/32.
[PE2] ip prefix-list abc index 10 permit 4.4.4.4 32
[PE2] route-policy frr permit node 10
[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
V erifying the configuration
5 1 5 B
# 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
Interface IP address
Loop0 5.5.5.5/32
Vlan-int10 10.2.1.1/24
Loop0 1.1.1.1/32
Vlan-int10 10.2.1.2/24
Vlan-int11 172.1.1.1/24
Vlan-int12 172.2.1.1/24
Loop0 4.4.4.4/32
Vlan-int13 10.1.1.1/24
Vlan-int14 10.3.1.1/24
Device
PE 2
PE 3
295
Interface IP address
Loop0 2.2.2.2/32
Vlan-int11 172.1.1.2/24
Vlan-int13 10.1.1.2/24
Vlan-int15 172.3.1.2/24
Loop0 3.3.3.3/32
Vlan-int12 172.2.1.3/24
Vlan-int14 10.3.1.2/24
Vlan-int15 172.3.1.3/24
T able 24, and configure BGP and
8 2 1 H
C onfiguring basic MPLS
8 2 2 H