3Com Switch 8800 Configuration Guide
Chapter 31 MBGP Multicast Extension Configuration
31-9
Operation
Command
Remove outgoing policy
cnfiguration
undo peer
group-name
ip-prefix
prefixname
export
By default, a peer (group) does not perform route filtering based on the prefix list.
31.2.8 Configuring MBGP Route Aggregation
MBGP supports the manual aggregation of routes. Manual aggregation aggregates the
local MBGP routes. A series of parameters can be configured during manual route
aggregation.
Please perform the following configurations in IPV4 multicast sub-address family view.
Table 31-12
Configuring MBGP route aggregation
Operation
Command
Configure the
aggregation of local
routes
aggregate
address mask
[
as-set
|
attribute-policy
route-policy-name
|
detail-suppressed
|
origin-policy
route-policy-name
|
suppress-policy
route-policy-name
]*
Remove the
aggregation of local
routes
undo aggregate
address mask
[
as-set
|
attribute-policy
route-policy-name
|
detail-suppressed
|
origin-policy
route-policy-name
|
suppress-policy
route-policy-name
]*
By default, MBGP does not aggregate local routes.
31.2.9 Configuring an MBGP Route Reflector
To ensure the interconnectivity among MBGP peers, it is necessary to establish
fully-closed network among IBGP multicast peers. However, some internal MBGP
multicast networks are very large, and it costs a good sum to establish a fully-closed
network. Route reflector solves this problem. The core is to specify a router as the
focus of the internal sessions. Multiple MBGP multicast routers can be peers of one
central point, namely a multiple route reflector, which in turn creates peer relationship
with other reflectors. The route reflector is the focus of other routers. The routers other
than those reflectors are called clients. The clients are in peer with route reflects and
exchange routing information with them. The route reflectors transfer (reflect)
information between the clients in turn.
For the details of the principles and configurations, refer to “BGP Configuration” of the
Routing Protocol part.
