HPE FlexFabric 5950 Series Configuration Manual page 305

Table 26 Interface and IP address assignment
Device
CE 1
PE 1
CE 2
C onfiguration procedure
5 1 7 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 BFD to test the connectivity of the LSP to 3.3.3.3/32.
<PE2> system-view
[PE2] mpls bfd enable
[PE2] mpls bfd 3.3.3.3 32
# Create routing policy frr, and specify the backup next hop as 10.1.1.1 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 10.1.1.1
[PE2-route-policy] quit
# Configure FRR for VPN instance vpn1 to use routing policy frr.
[PE2] bgp 100
[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
[PE2-bgp-default-ipv4-vpn1] quit
[PE2-bgp-default-vpn1] quit
# Specify the preferred value as 200 for BGP VPNv4 routes received from PE 3. This value is
greater than the preferred value (0) for IPv4 unicast routes from CE 2, so PE 2 prefers the
routes from PE 3.
[PE2-bgp-default] address-family vpnv4
[PE2-bgp-default-vpnv4] peer 3.3.3.3 preferred-value 200
[PE2-bgp-default-vpnv4] quit
[PE2-bgp-default] quit
3. Enable MPLS BFD on PE 3.
<PE3> system-view
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
297
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 3 H
C onfiguring basic MPLS
8 2 4 H