H3C Technologies H3C S10500 Series Switches - Manual (Page 262)

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To do… Use the command… Remarks
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.
Enable route reflection between
clients
reflect between-clients
Optional
Enabled by default
Configure the cluster ID for the RR
reflector cluster-id { cluster-id |
ip-address }
Optional
By default, each RR in a cluster uses
its own router ID as the cluster ID.
Configure BGP to filter routes to be
advertised
filter-policy { acl-number |
ip-prefix ip-prefix-name } export
[ direct | isis process-id | ospf
process-id | rip process-id | static ]
Optional
By default, BGP does not filter
routes to be advertised.
Configure BGP to filter received
routes filter-policy { acl-number |
ip-prefix ip-prefix-name } import
Optional
By default, BGP does not filter
received routes.
NOTE:
•
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.
• You can execute the reflect between-clients command and the reflector cluster-id command in multiple
views, such as BGP-VPN instance view and BGP-VPNv4 subaddress family view. The two commands
take effect for only the RR in the view where they are executed. For RRs in other views, they do not take
effect.
• 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 of the route.
2. Configurations on a CE
Follow these steps to configure iBGP between PE and CE:
To do… Use the command… Remarks
Enter system view system-view —
Enter BGP view bgp as-number —
Configure the PE as the iBGP peer
peer { group-name | ip-address }
as-number as-number
Required
Configure the route redistribution
and advertisement behavior
import-route protocol [ process-id ]
[ med med-value | route-policy
route-policy-name ] *
Optional
A CE needs to advertise its routes
to the connected PE so that the PE
can advertise them to the peer CE.