Configuring BGP4+ XPL

BGP4+ extended routing-policy language (XPL) route-filters can be used to flexibly control BGP4+ acceptance and advertisement.

Usage Scenario

Route-filters can set and re-set BGP4+ route attributes through the predefined conditions to control BGP4+ route acceptance and advertisement.

A route-filter can use its condition clause to filter routes and set or modify route attributes of the routes that match the condition clause.

Pre-configuration Tasks

Before configuring BGP4+ XPL, complete the following tasks:

Configure IP addresses for interfaces and ensure that neighboring devices are reachable at the network layer.
Configure basic BGP4+ functions.

Using XPL to Filter the BGP4+ Routes to Be Advertised: This section describes how to use XPL to filter the BGP4+ routes to be advertised to BGP4+ peers.

Using XPL to Filter the BGP4+ Routes to Be Received: A BGP4+ device can use a route-filter to filter the routes to be received and modify route attributes to control network traffic forwarding paths.

Parent Topic: BGP4+ Configuration

Copyright © Huawei Technologies Co., Ltd.

Copyright © Huawei Technologies Co., Ltd.

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