Zte ZXR10 GER, Руководство пользователя

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ZXR10 GER (V2.6.03) General Excellent Router User Manual Volume-I
236 Confidential and Proprietary Information of ZTE CORPORATION
Filtering Routes using Route Map
Route filtering and attribute configuration are the basis of BGP
decision. By means of route filtering operations, the input or
output route attributes can be controlled according to actual
requirements.
A route map is used to control routing information and route
redistribution is implemented by means of defining conditions
among routing domains. Normally, the route map is used in
conjunction with route attributes to make route decision.
Refer to below procedure for route-map configuration on ZTE
ZXR10 GER.
„
Router Command Line Interface has been accessed.
„
BGP is running on a network.
1. To define a route map for controlling routing information, use
route-map < map-tag > [ permit|deny ] [< sequence-
number >] in global config mode as shown in Table 288.
T
A B L E
2 8 8 R
O U T E
- M
A P
C
O M M A N D
Command Format
Command Mode Command
Function
route-map < map-tag >
[ permit|deny ]
[< sequence-number >]
Global config
This defines a
route map
Result: This sets a route-map for controlling routing
information.
2. To designate neighbor for an input or output route map, use
neighbor < ip-address > route-map < string> { in|out }
command in BGP route mode as shown in Table 289.
T
A B L E
2 8 9 N
E I G H B O R
- R
O U T E
- M
A P
C
O M M A N D
Command
Format Command
Mode Command Function
neighbor < ip-
address > route-
map < string>
{in|out}
BGP Route
This configures the
filtering of routes
advertised from or to the
neighbor
Result: This sets route filtration coming from or to the
neighbor.
E
ND OF STEPS
Example: In below example, a route map (that is, MAP1) is
defined. The route map allows the advertisement of the network
172.3.0.0 to AS 200 and the setting of its MED value to 5. Upon
route filtering operation by means of a router map, normally the
commands
match and set are used in conjunction. The match
Introduction
Purpose
Prerequisite
Steps