R3102-R3103-HP 6600/HSR6600 Routers MPLS Configuration Guide

275
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 the EBGP
peer.
peer { group-name | ip-address }
as-number as-number
For more information about BGP
peer and peer group
configuration, see Layer 3—IP
Routing Configuration Guide. This
chapter does not differentiate
between peer and peer group.
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.