Brocade FastIron Ethernet Switch Layer 3 Routing Configuration Guide - Manual (Page 533)

• Static IPv6 routes
• Directly connected IPv6 networks
• OSPFv3
• RIPng
You can redistribute routes in the following ways:
• By route types, for example, the device redistributes all IPv6 static and RIPng routes.
• By using a route map to filter which routes to redistribute, for example, the device redistributes
specified IPv6 static and RIPng routes only.
For example, to configure the redistribution of all RIPng routes into the BGP4+ unicast database, enter
the following commands at the BGP4+ address family configuration level:
device(config-bgp-ipv6u)# redistribute rip
Syntax: redistribute protocol [ match external1 | external2 | internal ] [ metric metric-value ] [ route-
map name ]
The protocol parameter can be connected, ospf, rip, or static.
If you specify ospf as the protocol, you can optionally specify the redistribution of external 1, external 2,
or internal routes. (The default is internal.)
The metric metric-value parameter specifies the metric used for the redistributed route. If a value is not
specified for this option, and no value is specified using the default-metric command at the BGP4+
unicast address family configuration level, the metric value for the IPv6 static, RIPng, or IPv6 OSPF
route is used. Use a value consistent with the destination protocol.
The name parameter specifies a route map name.
Aggregating routes advertised to BGP4 neighbors
By default, a device advertises individual BGP4+ routes for all the networks. The aggregation feature
allows you to configure a device to aggregate routes in a range of networks into a single IPv6 prefix. For
example, without aggregation, a will individually advertise routes for networks 2001:db8:0001:0000::/64,
2001:db8:0002:0000::/64, 2001:db8:0003:0000::/64, and so on. You can configure the device to instead
send a single, aggregate route for the networks. The aggregate route would be advertised as
2001:db8::/24 to BGP4 neighbors.
To aggregate BGP4+ routes for 2001:db8:0001:0000::/64, 2001:db8:0002:0000::/64,
2001:db8:0003:0000::/64, enter the following command.
device(config-bgp-ipv6u)# aggregate-address 2001:db8::/24 summary-only
Syntax: aggregate-address ipv6-prefix/prefix-length [ as-set ] [ summary-only ] [ suppress-map
map-name ] [ advertise-map map-name ] [ attribute-map map-name ]
The ipv6-prefix and prefix-length parameters specify the aggregate value for the networks. You must
specify the ipv6-prefix parameter in hexadecimal using 16-bit values between colons as documented in
RFC 2373. You must specify the prefix-length parameter as a decimal value. A slash mark (/) must
follow the ipv6-prefix parameter and precede the prefix-length parameter.
The as-set keyword causes the device to aggregate AS-path information for all the routes in the
aggregate address into a single AS-path.
The summary-only keyword prevents the 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.
Aggregating routes advertised to BGP4 neighbors
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