H3C Technologies H3C S7500E Series Switches - Manual (Page 266)

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To do… Use the command… Remarks
Enter BGP view bgp as-number —
Configure each PE in the same AS
as the IBGP peer
peer { group-name | ip-address }
as-number as-number
Required
Enable the ASBR PE to exchange
labeled IPv4 routes with the PEs in
the same AS
peer { group-name | ip-address }
label-route-capability
Required
By default, the device does not
advertise labeled routes to the
IPv4 peer/peer group.
Configure the ASBR PE to change
the next hop to itself when
advertising routes to PEs in the
same AS
peer { group-name | ip-address }
next-hop-local
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.
Configure the remote ASBR PE as
the EBGP peer
peer { group-name | ip-address }
as-number as-number
Required
Enable the ASBR PE to exchange
labeled IPv4 routes with the peer
ASBR PE
peer { group-name | ip-address }
label-route-capability
Required
By default, the device does not
advertise labeled routes to the
IPv4 peer.
Apply a routing policy to the routes
advertised by peer ASBR PE
peer { group-name | ip-address }
route-policy route-policy-name
export
Required
By default, no routing policy is
applied to a peer or peer group.
Configuring the routing policy
After you configure and apply a routing policy on an ASBR PE, it:
z
Assigns MPLS labels to the routes received from the PEs in the same AS before advertising them
to the peer ASBR PE.
z
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… Use the command… Remarks
Enter system view system-view —
Enter routing policy view
route-policy policy-name permit
node seq-number
Required
Configure the device to match
IPv4 routes with labels
if-match mpls-label Required