Juniper JUNOSE 11.2.X IP SERVICES, Руководство по настройке

Страница: 41 / 356

Router host1 receives the same route from 10.6.2.5 and applies the indelete route map.
BGP compares each list entry with the community attribute. A match is found for the
list entry 231:10, and this community is deleted from the community attribute. Similarly,
a match is found for the list entry of 231:20, and this community is deleted from the
community attribute.
•
Example
host1(config-route-map)# set comm-list 1 delete
•
Use the no version to delete the set clause from a route map.
•
See set comm-list delete.
set community
•
Use to set the community attribute in BGP updates.
•
You can specify a community list number in the range 1–4294967295, or in the new
community format of AA:NN, or one of the following well-known communities:
•
local-asr —Prevents advertisement outside the local AS
•
no-advertise —Prevents advertisement to any peer
•
no-export —Prevents advertisement beyond the BGP confederation boundary
•
Alternatively, you can use the list keyword to specify the name of a community list
that you previously created with the ip community-list command.
•
Example
host1(config-route-map)# set community no-advertise
•
Use the none keyword to remove the community attribute from a route.
•
Use the no version to delete the set clause from a route map.
•
See set community.
set dampening
•
Use to enable BGP route flap dampening only on routes that pass the match clauses
of, and are redistributed by, a particular route map.
•
BGP creates a dampening parameter block for each unique set of dampening
parameters—such as suppress threshold, reuse threshold, and so on—used by BGP.
For example, if you have a route map that sets the dampening parameters to one set
of values for some routes and to another set of values for the remaining routes, BGP
uses and stores two dampening parameter blocks, one for each set.
•
Example
host1(config-route-map)# set dampening 5 1000 1500 45 15
•
Use the no version to delete the set clause from a route map.
•
See set dampening.
set distance
15 Copyright © 2010, Juniper Networks, Inc.
Chapter 1: Configuring Routing Policy