Alcatel Carrier Internetworking Solutions 060187-10 REV D ユーザーズマニュアル
Configuring OSPF
Configuring OSPF
OmniSwitch 6600 Family Advanced Routing Configuration Guide
March 2005
page 1-27
Creating A Redistribution Policy
Once a router is set as an ASBR and redistribution is enabled, a redistribution policy can be created. This
is done using the
is done using the
ip ospf redist
command. When setting up a redistribution policy, choose the type of
route or protocol that will be redistributed as an OSPF route in the OSPF network. For example, to redis-
tribute RIP routes, enter the following:
tribute RIP routes, enter the following:
-> ip ospf redist rip
To redistribute static routes, enter the following:
-> ip ospf redist static
A cost metric can be added to the redistributed route, either as a set number or by specifying a route type
(route types have preassigned metrics and other rule that control how they are redistributed). For example,
to add a cost metric of 50 to RIP routes, enter the following:
(route types have preassigned metrics and other rule that control how they are redistributed). For example,
to add a cost metric of 50 to RIP routes, enter the following:
-> ip ospf redist rip metric 50
To set RIP route redistribution as type 1 routes, enter the following:
-> ip ospf redist rip metric-type type1
For more information on route types, see the
ip ospf redist
command in the OmniSwitch CLI Reference
Guide.
To display the redistribution policies on a router, enter the
show ip ospf redist
command at the CLI
prompt.
To delete a redistribution policy, enter the ip ospf redist command with the route or protocol type, and the
no keyword, as shown:
no keyword, as shown:
-> no ip ospf redist rip
Creating a Redistribution Filter
Redistribution filters are used by routers to control which routes are advertised to the rest of the network.
Filters can be created on any OSPF router that has redistribution enabled.
Filters can be created on any OSPF router that has redistribution enabled.
Filters are created using the
ip ospf redist-filter
command.When using a filter, a route or protocol type
must be specified, along with the IP address and mask. Only routes matching the specified criteria will be
advertised. For example, to create a filter for RIP routes 1.1.0.0 with a mask of 255.255.0.0, enter the
following:
advertised. For example, to create a filter for RIP routes 1.1.0.0 with a mask of 255.255.0.0, enter the
following:
-> ip ospf redist-filter rip 1.1.0.0 255.255.0.0
Filters can also be used to prevent routes from being advertised by using the effect keyword. Using the
above example, to prevent RIP routes learned from 1.1.0.0 being advertised, enter the following:
above example, to prevent RIP routes learned from 1.1.0.0 being advertised, enter the following:
-> ip ospf redist-filter rip 1.1.0.0 255.255.0.0 effect deny
This filter would stop the advertisement of RIP routes learned within the range 1.1.0.0 with a mask of
255.255.0.0. All other routes would be advertised normally.
255.255.0.0. All other routes would be advertised normally.
Note. By default, filters are set to permit. If permit is the filter action desired, it is not necessary to use
the effect keyword.
the effect keyword.