R21xx-HP FlexFabric 11900 MPLS Configuration Guide
112
Ste
p
Command
Remarks
4. Configure the CE as the VPN
IBGP peer.
peer { group-name | ip-address }
as-number as-number
By default, no BGP peer is created.
5. Create and enter BGP VPN
IPv4 unicast family view.
ipv4-family [ unicast ] N/A
6. Enable IPv4 unicast route
exchange with the specified
peer.
peer { group-name | ip-address }
enable
By default, BGP does not exchange
IPv4 unicast routes with any peer.
7. Configure the CE as a client
of the RR.
peer { group-name | ip-address }
reflect-client
By default, no RR or RR client is
configured, and the PE does not
advertise routes learned from the
IBGP peer CE to other IBGP peers,
including VPNv4 IBGP peers. The
PE advertises routes learned from
the CE to other IBGP peers only
when you configure the IBGP peer
CE as a client of the RR.
Configuring an RR does not
change the next hop of a route. To
change the next hop of a route,
configure an inbound policy on the
receiving side.
8. (Optional.) Enable route
reflection between clients.
reflect between-clients
Route reflection between clients is
enabled by default.
9. (Optional.) Configure the
cluster ID for the RR.
reflector cluster-id { cluster-id |
ip-address }
By default, the RR uses its own
router ID as the cluster ID.
If multiple RRs exist in a cluster, use
this command to configure the
same cluster ID for all RRs in the
cluster to avoid routing loops.
2. Configure the CE:
Ste
p
Command
Remarks
1. Enter system view.
system-view N/A
2. Enter BGP view. bgp as-number N/A
3. Configure the PE as an IBGP
peer.
peer { group-name | ip-address }
as-number as-number
By default, no BGP peer is created.
4. Create and enter BGP IPv4
unicast family view.
ipv4-family [ unicast ] N/A
5. Enable IPv4 unicast route
exchange with the specified
peer or peer group.
peer { group-name | ip-address }
enable
By default, BGP does not exchange
IPv4 unicast routes with any peer.
6. (Optional.) Configure route
redistribution.
import-route protocol [ { process-id
| all-processes } [ med med-value |
route-policy route-policy-name ] * ]
A CE must redistribute its routes to
the PE so the PE can advertise them
to the peer CE.
Configuring routing between PEs