Configuring Mpls L3Vpn Frr Through Vpnv4 Route Backup For An Ipv4 Route - HP MSR2000 Configuration Manual

Verifying the configuration
# Display detailed information about the route to 4.4.4.4/32 on PE 1. The output shows the backup next
hop for the route.
[PE1] display ip routing-table vpn-instance vpn1 4.4.4.4 32 verbose
Summary Count : 1
Destination: 4.4.4.4/32
Protocol: BGP
SubProtID: 0x1
Cost: 0
IpPre: N/A
Tag: 0
OrigTblID: 0x0
TableID: 0x102
NibID: 0x15000002
AttrID: 0x2
Flags: 0x110060
Label: 1146
BkLabel: 1275
Tunnel ID: Invalid
BkTunnel ID: Invalid
FtnIndex: 0x0
Configuring MPLS L3VPN FRR through VPNv4 route backup for
an IPv4 route
Network requirements
CE 1 and CE 2 belong to VPN 1.
Configure EBGP between CEs and PEs to exchange VPN routing information.
Configure OSPF to ensure connectivity between PEs, and configure MP-IBGP to exchange VPNv4 routing
information.
Configure MPLS L3VPN FRR on PE 2 to achieve the following purposes:
When the link PE 2—CE 2 operates correctly, traffic from CE 1 to CE 2 goes through the path CE
•
1—PE 1—PE 2—CE 2.
When BFD configured on PE 2 detects that the link between PE 2 and CE 2 fails, traffic from CE 1
•
to CE 2 goes through the path CE 1—PE 1—PE 2—PE 3—CE 2.
Process ID: 0
Age: 00h00m03s
Preference: 255
QosLocalID: N/A
State: Active Adv
OrigVrf: default-vrf
OrigAs: 300
LastAs: 300
Neighbor: 2.2.2.2
OrigNextHop: 2.2.2.2
RealNextHop: 172.1.1.2
BkNextHop: 172.2.1.3
Interface: GE2/1/2
BkInterface: GE2/1/3
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