Configuring MBGP Routing Policies

MBGP routing policies can be configured to flexibly control the sending and receiving of routes.

Usage Scenario

Routing policies can be used to set or re-set MBGP route attributes by using some predefined conditions, which provides a flexible and effective method to control MBGP route selection. The sending and receiving of routes can be flexibly controlled by applying MBGP routing policies.

Pre-configuration Tasks

Before configuring MBGP routing policies, configure an MBGP peer.

Configuring a Route-policy: A route-policy is used to filter routes.

Configuring a Policy for Receiving MBGP Routes: MBGP filters received routes by using a policy. Only the routes that match the policy can be added to a routing table.

Configuring a Policy for Advertising MBGP Routes: After MBGP filters the imported routes, only routes that pass the filtering are added to the local MBGP routing table and advertised to MBGP peers.

Configuring MBGP Soft Resetting: MBGP soft resetting allows the system to refresh an MBGP routing table dynamically without tearing down any MBGP connection if routing policies are changed.

Verifying the Configuration of Policies for Route Exchanges Between MBGP Peers: After configuring policies for route exchange between MBGP peers, verify information about MBGP routes.