Specifying The Vpn Label Processing Mode; Configuring Bgp As Number Substitution And Soo - HP HSR6800 Configuration Manual

Step
5. Redistribute the VPN
routes of the VPN site.
6. Configure a filtering
policy to filter the routes
to be advertised.
7. Configure a filtering
policy to filter the
received routes.

Specifying the VPN label processing mode

The VPN label processing mode of an egress PE can be either POPGO or POP:
•
POPGO forwarding—Pop the label, and then search for the outbound interface according to
the label and forward the packet out of the interface.
•
POP forwarding—Pop the label, and then search the FIB to find the outbound interface and
forward the packet out of the interface.
To specify the VPN label processing mode on an egress PE:
Step
1. Enter system view.
2. Specify the VPN label
processing mode as
POPGO forwarding.
After you execute the vpn popgo command, reboot the device to validate the configuration.
After the vpn popgo command is executed successfully, the device does not inform you of the
current VPN label processing mode. You can use the display vpn label operation command to
view the current VPN label processing mode.
Configuring BGP AS number substitution and
SoO
When CEs at different sites have the same AS number, configure the BGP AS number substitution
function to avoid route loss.
With the BGP AS number substitution function, when a PE advertises a route to the specified CE, if
an AS number identical to that of the CE exists in the AS_PATH of the route, it is replaced with that of
the PE before the route is advertised.
Before you configure BGP AS number substitution and SoO, complete the following tasks:
•
Configure basic MPLS L3VPN
•
Ensure CEs at different sites to have the same AS number
To configure BGP AS number substitution and SoO:
Command
import-route protocol [ process-id |
all-processes ] [ med med-value |
route-policy route-policy-name ] *
filter-policy { acl-number | ip-prefix
ip-prefix-name } export [ direct | isis
process-id | ospf process-id | rip
process-id | static ]
filter-policy { acl-number | ip-prefix
ip-prefix-name } import
Command
system-view
vpn popgo
290
Remarks
By default, No route
redistribution is configured.
Optional.
By default, BGP does not
filter the routes to be
advertised.
Optional.
By default, BGP does not
filter the received routes.
Remarks
N/A
POP forwarding by default.