Cabletron Systems SSR-GLX19-02, User Manual

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Chapter 16: Configuring Routing Policies on the SSR
328 CoreWatch User’s Manual
9. Under Import BGP Routes based on , specify the source of your BGP routes by doing one
of the following:
– To specify the source of your BGP routes as a particular autonomous system, select
the
Autonomous System option and specify the autonomous system identity in the
associated text box.
– To specify the source of your BGP routes as a regular expression from a particular
autonomous system, select the
AS Path Regular Expression option and specify the
expression in the associated text box.
10. Specify the origin for your BGP import source by selecting the appropriate type from
the
Origin
drop-down list. You can select one of the following four options:
– any
– igp
– egp
– incomplete
11. If you wish, specify an optional attribute for the BGP import source by selecting one
from the Optional Attribute drop-down list. The available optional attributes in this
drop-down list are a collection of pre-defined optional attributes you may have
previously specified, as described in
“Configuring and Modifying Optional Attribute
Building Blocks” on page 334 .
12. If you wish, specify a sequence number for the export destination in the Sequence
Number box.
13. Specify whether the SSR restricts the import or associates a preference with the
imported routes by doing one of the following:
– If you do not want the SSR to import any routes from the source, select the Restrict
Route Import from the specified BGP Source option.
– If you want the SSR to associate a preference with the imported routes, enter a
number from 0 to 255 in the
Route Preference box.
Configuration Expert lets you set preferences when you configure RIP, OSPF, BGP
and routing policies. The SSR uses preference values to determine the preference
of routes from one protocol or peer over another.
14. Click OK.
15. Repeat step 8 through step 14 until you create all of the BGP import sources you plan
to include in your import policies.