Configuring Mpls L3Vpn Frr - HP FlexNetwork HSR6600 Configuration Manual

Step
3. Enter BGP-VPN instance
view.
4. Enable the BGP AS number
substitution feature.
5. Enter BGP-VPN IPv4 unicast
address family view.
6. (Optional.) Configure the
SoO attribute for a BGP peer
or peer group.
For more information about the commands in this section, see Layer 3—IP Routing Command
Reference.

Configuring MPLS L3VPN FRR

You can use the following methods to configure MPLS L3VPN FRR:
•
Method 1—Execute the pic command in BGP-VPN IPv4 unicast address family view. The
device calculates a backup next hop for each BGP route in the VPN instance if there are two or
more unequal-cost routes to reach the destination.
•
Method 2—Execute the fast-reroute route-policy command in BGP-VPN IPv4 unicast
address family view to use a routing policy. In the routing policy, specify a backup next hop by
using the apply fast-reroute backup-nexthop command. The backup next hop calculated by
the device must be the same as the specified backup next hop. Otherwise, the device does not
generate a backup next hop for the primary route. You can also configure if-match clauses in
the routing policy to identify the routes protected by FRR.
If both methods are configured, Method 2 takes precedence over Method 1.
To configure MPLS L3VPN FRR:
Step
1. Enter system view.
2. Enable MPLS BFD.
3. Configure the source IP
address for BFD echo
packets.
Command
ip vpn-instance
vpn-instance-name
peer { ipv4-address
[ mask-length ] | group-name }
substitute-as
address-family ipv4 [ unicast ]
peer { group-name | ipv4-address
[ mask-length ] } soo site-of-origin
Command
system-view
mpls bfd enable
bfd echo-source-ip ip-address
235
Remarks
N/A
By default, BGP AS number
substitution is disabled.
N/A
By default, the SoO attribute is not
configured.
Remarks
N/A
The mpls bfd enable command
applies to VPNv4 route backup for
a VPNv4 route and IPv4 route
backup for a VPNv4 route. For
more information about this
command, see MPLS Command
Reference.
The bfd echo-source-ip
command is required when
echo-mode BFD is used to detect
primary route connectivity in
VPNv4 route backup for an IPv4
route. For more information about
this command, see High
Availability Command Reference.