Cabletron Systems SmartSwitch 8-slot, Руководство пользователя

Страница: 90 / 150

Chapter 6: Routing Policy Configuration Guide
6 - 18 SSR User Reference Manual
The
<imp-src-id>
is the identifier of the import-source that determines the source
of the imported routes. If no routes from a particular source are to be imported, then no
additional parameters are required.
The
<filter-id>
, if specified, is the identifer of the route-filter associated with this
import-policy. If there is more than one route-filter for any import-source, then the ip-
router policy import source <imp-src-id> command should be repeated for each
<filter-id>
.
Creating an Import Source
Import sources specify the routing protocol from which the routes are imported. The
source may be RIP or OSPF.
To create an import source, enter one of the following commands in Configure mode:
Creating a Route Filter
Route policies are defined by specifying a set of filters that will match a certain route
by destination, or by destination and mask.
To create route filters, enter the following command in Configure mode:
Creating an Aggregate Route
Route aggregation is a method of generating a more general route, given the presence
of a specific route. The routing process does not perform any aggregation unless
explicitly requested. Aggregate-routes can be constructed from one or more of the
following building blocks:
• Aggregate-Destination - This component specifies the aggregate/summarized route.
It also specifies the attributes associated with the aggregate route. The preference to
be associated with an aggregate route can be specified using this component.
• Aggregate-Source - This component specifies the source of the routes contributing
to an aggregate/summarized route. It can also specify the preference to be associated
Create a RIP import destination.
ip-router policy create rip-import-
source < name>
Create an OSPF import destination.
ip-router policy create ospf-import-
source < name>
Create a route filter.
ip-router policy create filter < name-
id> network <IP-address/mask>