Dell Brocade DCX, Configuration Manual

Page: 1282 / 1436

1210 BigIron RX Series Configuration Guide
53-1001810-01
Configuring OSPFv3
48
NOTE
If you disable redistribution, all the aggregate routes are flushed, along with other imported routes.
NOTE
This option affects only imported, type 5 external routes. A single type 5 LSA is generated and
flooded throughout the AS for multiple external routes.
To configure the summary address 2201::/24 for routes redistributed into OSPFv3, enter the
following command.
BigIron RX(config-ospf6-router)# summary-address 2201::/24
In this example, the summary prefix 2201::/24 includes addresses 2201::/1 through 2201::/24.
Only the address FEC0::/24 is advertised in an external link-state advertisement.
Syntax: summary-address < ipv6-prefix >/< prefix-length >
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.
Filtering OSPFv3 routes
You can filter the routes to be placed in the OSPFv3 route table by configuring distribution lists.
OSPFv3 distribution lists can be applied globally or to an interface.
The functionality of OSPFv3 distribution lists is similar to that of OSPFv2 distribution lists. However,
unlike OSPFv2 distribution lists, which filter routes based on criteria specified in an Access Control
List (ACL), OSPFv3 distribution lists can filter routes using information specified in an IPv6 prefix list
or a route map.
Configuration examples
The following sections show examples of filtering OSPFv3 routes using prefix lists globally and for a
specific interface, as well as filtering OSPFv3 routes using a route map.
You can configure the device to use all three types of filtering. When you do this, filtering using
route maps has higher priority over filtering using global prefix lists. Filtering using prefix lists for a
specific interface has lower priority than the other two filtering methods.