Specifying Network Routes Notified By Mbgp Multicast Extension; Configuring The Med Value For An As; Comparing Med Values From Different As Neighbor Paths - 3Com 8800 Configuration Manual

3Com Switch 8800 Configuration Guide
Table 31-1 Enabling MBGP multicast extension protocol
Enter the MBGP multicast address
family view
Remove the MBGP multicast address
family view
By default, the system does not run the MBGP multicast extension protocol.

31.2.2 Specifying Network Routes Notified by MBGP Multicast Extension

The network command is used to specify the network routes to be advertised to MBGP
peers, as well as the mask and route policy of this network route.
Perform the following configurations in IPV4 multicast sub-address family view.
Table 31-2 Specifying network routes notified by MBGP multicast extension
Configure the network routes to be
advertised by the local MBGP
Remove the network routes to be
advertised by the local MBGP
By default, no route is advertised by the local MBGP.
The network command advertises only the precisely matched route, the one with
prefix and mask completely conforming to the configuration. If no mask is specified,
match goes by the natural network segment.

31.2.3 Configuring the MED Value for an AS

The MED configured in BGP view is valid for both unicast and multicast.
For the details of this configuration, refer to "BGP Configuration" of the Routing Protocol
part of this manual.

31.2.4 Comparing MED Values from Different AS Neighbor Paths

Do not use this configuration unless you are sure that different ASs adopt the same IGP
and route selection method. The configuration in BGP view works both in unicast and
multicast.
For the details of this configuration, refer to "BGP Configuration" of the Routing Protocol
part of this manual.
Chapter 31 MBGP Multicast Extension Configuration
Operation
Operation
31-4
Command
ipv4-family multicast
undo ipv4-family multicast
Command
network ip-address [ address-mask ]
[ route-policy route-policy-name ]
undo network
[ address-mask ]
route-policy-name ]
ip-address
[ route-policy