Brocade Multi-Service IronWare Routing Configuration Guide (Supporting R05.6.00) - Manual (Page 380)

352 Multi-Service IronWare Routing Configuration Guide
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Configuring MBGP
Syntax: [no] ip mroute ip-addr ip-mask [next-hop-ip-addr | ethernet slot/port | ve nu | tunnel num
| null0] [cost] [distance num]
The ip-addr and ip-mask parameters specifies the PIM source for the route. Also, for IPv6 address
family, make sure you enter the IP address in IPv6 format.
The ethernet slot/port parameter specifies a physical port.
The ve num parameter specifies a virtual interface.
The tunnel num parameter specifies a GRE tunnel interface that is being configured. The GRE
tunnel interface is enabled under the router PIM configuration.
The null0 parameter is the same as dropping the traffic.
The distance num parameter sets the administrative distance for the route.
The cost parameter specifies the cost metric of the route. Possible values are: 1 - 6. Default value:
1
NOTE
Regardless of the administrative distances, the Brocade device always prefers directly connected
routes over other routes.
Aggregating routes advertised to BGP4 neighbors
By default, the Brocade device advertises individual MBGP routes for all the multicast networks.
The aggregation feature allows you to configure the Brocade device to aggregate routes in a range
of networks into a single CIDR number. For example, without aggregation, the Brocade device will
individually advertise routes for networks 10.95.10.0/24, 10.95.20.0/24, and 10.95.30.0/24. You
can configure the Brocade device to instead send a single, aggregate route for the networks. The
aggregate route would be advertised as 10.95.0.0/16.
To aggregate MBGP routes for 10.95.10.0/24, 10.95.20.0/24, and 10.95.30.0/24, enter the
following command.
Brocade(config-bgp-router)# aggregate-address 10.95.0.0 255.255.0.0
Syntax: [no] aggregate-address ip-addr ip-mask [as-set] [summary-only] [suppress-map
map-name] [advertise-map map-name] [attribute-map map-name]
The ip-addr and ip-mask parameters specify the aggregate value for the networks. Also, for IPv6
address family, make sure you enter the IP address in IPv6 format.
The as-set parameter causes the Brocade device to aggregate AS-path information for all the
routes in the aggregate address into a single AS-path.
The summary-only parameter prevents the Brocade device from advertising more specific routes
contained within the aggregate route.
The suppress-map map-name parameter prevents the more specific routes contained in the
specified route map from being advertised.
The advertise-map map-name parameter configures the Brocade device to advertise the more
specific routes in the specified route map.
The attribute-map map-name parameter configures the Brocade device to set attributes for the
aggregate routes based on the specified route map.