Configuring Bgp Filters - Huawei Quidway NetEngine80E Configuration Manual

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
Data Preparation
To configure BGP to receive routes, you need the following data.
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8.6.2 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 02 (2014-09-30)
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.
For details on ACL configurations, see the HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Services.
An ACL can be used as a matching condition of a route-policy or used in the filter-
policy { acl-number | acl-name acl-name } import command or the peer { group-name |
ipv4-address } filter-policy { acl-number | acl-name acl-name } import command.
Configure an IP prefix list.
An IP prefix list is a type of filter used to filter routes based on destination addresses. An
IP prefix list is identified by its name. An IP prefix list can be used flexibly to implement
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