Specifying The Vpn Label Processing Mode On The Egress Pe; Configuring Bgp As Number Substitution; Configuring Mpls L3Vpn Frr - HP 6127xlg Configuration Manual

Specifying the VPN label processing mode on the
egress PE
An egress PE can process VPN labels in either POPGO or POP mode.
• POPGO forwarding—Pops the label and forwards the packet out of the egress interface
corresponding to the label.
POP forwarding—Pops the label and forwards the packet through the FIB table.
•
To specify the VPN label processing mode on an egress PE:
Step
1. Enter system view.
2. Enter BGP view.
3. Specify the VPN label
processing mode as POPGO
forwarding.

Configuring BGP AS number substitution

When CEs at different sites have the same AS number, configure the BGP AS number substitution feature
to avoid route loss. If the AS_PATH attribute of a route contains the AS number of the specified CE, the PE
replaces the AS number with its own AS number before advertising the route to that CE.
To configure BGP AS number substitution:
Step
1. Enter system view.
2. Enter BGP view.
3. Enter BGP-VPN instance view.
4. Configure a BGP peer or peer
group.
5. Enable the BGP AS number
substitution feature.

Configuring MPLS L3VPN FRR

There are two methods to configure MPLS L3VPN FRR:
Command
system-view
bgp as-number
vpn popgo
Command
system-view
bgp as-number
ip vpn-instance vpn-instance-name
peer { group-name | ip-address
[ mask-length ] } as-number
as-number
peer { group-name | ip-address
[ mask-length ] } substitute-as
201
Remarks
N/A
N/A
The default is POP forwarding.
Remarks
N/A
N/A
N/A
N/A
By default, BGP AS number
substitution is disabled.
For more information about this
command, see Layer 3—IP Routing
Command Reference.