Configuring Bgp Filters - Huawei S6700 Series Configuration Manual

S6700 Series Ethernet Switches
Configuration Guide - IP Routing
Filters can be used to filter routes to be received by BGP. BGP can filter the routes received
from all peers or peer groups or only the routes received from a specific peer or peer group.
Pre-configuration Tasks
Before configuring BGP to receive routes, complete the following task:
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Data Preparation
To configure BGP to receive routes, you need the following data.
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7.6.2 Configuring BGP Filters

BGP filters can be used to filter routes to be received.
Context
Filters are needed to filter routes to flexibly receive routes. Currently, six filters are available
for BGP:
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Procedure
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Issue 01 (2012-03-15)
Configuring Basic BGP Functions
Data
Name or number of an ACL
Name, number, and matching mode of an IP prefix list
Number or name of an AS_Path filter
Number or name and matching mode of a community filter
Number or name and matching mode of an extended community filter
Name and matching mode of a route-policy, and number of the route-policy's node
Access Control List(ACL)
IP-Prefix List
AS_Path filter
Community filter
Extcommunity filter
Route-Policy
Configure an ACL.
An ACL is a series of sequential rules composed of permit and deny clauses. These rules
are described based on source addresses, destination addresses, and port numbers of
packets. ACL rules are used to classify packets. After ACL rules are applied to a device,
the device permits or denies packets based on the ACL rules.
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