R2511-HP MSR Router Series MPLS Configuration Guide(V5)

136
Ste
p
Command Remarks
4. Configure the route
redistribution and
advertisement behavior.
import-route protocol [ process-id ]
[ med med-value | route-policy
route-policy-name ] *
Optional.
A CE must advertise its routes
to the connected PE so the PE
can advertise them to the
peer CE.
NOTE:
• Exchange of BGP routes for a VPN instance is the same as that of ordinary BGP routes.
• The BGP configuration task in BGP-VPN instance view is the same as that in BGP view. For more
information, see
Layer 3—IP Routing Configuration Guide .
Configuring IBGP between a PE and a CE
Use IBGP between PE and CE devices in only common MPLS L3VPN network. In networks such as
Extranet, inter-AS VPN, carrier's carrier, nested VPN, and HoVPN, you cannot use IBGP between PE and
CE devices.
1. Configure the PE:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter BGP view.
bgp as-number N/A
3. Enter BGP VPN instance view.
ipv4-family vpn-instance
vpn-instance-name
N/A
4. Configure the CE as the VPN
IBGP peer.
peer { group-name | ip-address }
as-number as-number
N/A
5. Configure the system to be the
RR and specify the CE as the
client of the RR.
peer { group-name | ip-address }
reflect-client
Optional.
By default, no RR or RR
client is configured.
By default, a PE does not
advertise routes learned
from IBGP peer CEs to
IBGP peers, including
VPNv4 IBGP peers. Only
when you configure an
IBGP peer CE as a client of
the RR, does the PE
advertise routes learned
from it to other IBGP peers.
6. Enable route reflection between
clients.
reflect between-clients
Optional.
Enabled by default.
If the clients are fully
meshed, you do not need
to enable route reflection.