3Com MSR 50 Series Configuration Manual page 1494

1494 C 79: MPLS L3VPN C
HAPTER
n
ONFIGURATION
To do...
Enable the ASBR_PE to
exchange labeled IPv4 routes
with the PEs in the same AS
Configure the ASBR_PE to
change the next hop to itself
when advertising routes to
PEs in the same AS
Configure the remote ASBR
PE as the EBGP peer
Enable the ASBR_PE to
exchange labeled IPv4 routes
with the peer ASBR PE
Apply a routing policy to the
routes advertised by peer
ASBR_PE
Configuring the routing policy
After you configure and apply a routing policy on an ASBR PE, it:
Assigns MPLS labels to the routes received from the PEs in the same AS before
■
advertising them to the peer ASBR PE.
Assigns new MPLS labels to the labeled IPv4 routes to be advertised to the PEs
■
in the same AS.
Which IPv4 routes are to be assigned with MPLS labels depends on the routing
policy. Only routes that satisfy the criteria are assigned with labels. All the other
routes are still common IPv4 routes.
Follow these steps to configure a routing policy for inter-provider VPN option C on
an ASBR PE:
To do...
Enter system view
Enter routing policy view
Configure the device to match
IPv4 routes with labels
Configure the device to assign
labels to IPv4 routes
For information about routing policy configuration, refer to
Configuration" on page
Use the command...
peer peer-address
label-route-capability
peer { group-name |
ip-address } next-hop-local
peer { group-name |
ip-address } as-number
as-number
peer { group-name |
ip-address }
label-route-capability
peer { group-name |
ip-address } route-policy
route-policy-name export
Use the command...
system-view
route-policy policy-name
permit node seq-number
if-match mpls-label
apply mpls-label
991.
Remarks
Required
By default, the device does
not advertise labeled routes to
the IPv4 peer/peer group.
Required
By default, a BGP speaker
does not use its address as the
next hop when advertising a
route to its IBGP peer/peer
group.
Required
Required
By default, the device does
not advertise labeled routes to
the IPv4 peer.
Required
By default, no routing policy is
applied to a peer or peer
group.
Remarks
-
Required
Required
Required
By default, an IPv4 route does
not carry any label.
"Routing Policy