Cabletron Systems SmartSwitch Router 9032578-02 - Manual (Page 123)

SmartSwitch Router User Reference Manual 123
Chapter 7: Routing Policy Configuration Guide
Creating an Export Destination
To create an export destination, enter one the following commands in Configure mode:
Creating an Export Source
To create an export source, enter one of the following commands in Configure mode:
Import Policies
Import policies can be constructed from one or more of the following building blocks:
• Import-source - This component specifies the source of the imported routes. It can also
specify the preference to be associated with the routes imported from this source. The
routes to be imported can be identified by their associated attributes, including source
protocol, Source interface or gateway from which the route was received, and so on.
• Route Filter - This component provides the means to define a filter for the routes to be
imported. Routes that match a filter are considered as eligible for importation. This can
be done using one of two methods:
– Creating a route-filter and associating an identifier with it. A route-filter has
several network specifications associated with it. Every route is checked against
the set of network specifications associated with all route-filters to determine its
eligibility for importation. The identifier associated with a route-filter is used in the
ip-router policy import command.
– Specifying the networks as needed in the ip-router policy import command.
If you want to create a complex route-filter, and you intend to use that route-filter in
several import policies, then the first method is recommended. It you do not have
complex filter requirements, then use the second method.
After you create one or more building blocks, they are tied together by the iprouter policy
import command.
Create a RIP export destination. ip-router policy create rip-export-
destination <name>
Create an OSPF export
destination. ip-router policy create ospf-export-
destination <name>
Create a RIP export
source. ip-router policy create rip-export-source <name>
Create an OSPF export
source. ip-router policy create ospf-export-source <name>