3com WX3000 Manuel D’Utilisation

 

4-2 

For ACL configuration, refer to the part discussing ACL. 

A route policy is used to match some attributes with given routing information and the attributes of the 

information will be set if the conditions are satisfied. 

A route policy can comprise multiple nodes. Each node is a unit for matching test, and the nodes will be 

matched in ascending order of their node numbers. Each node comprises a set of if-match and apply 

clauses. The if-match clauses define the matching rules. The matching objects are some attributes of 

routing information. The relationship among the if-match  clauses for a node is “AND”. As a result, a 

matching test against a node is successful only when all the matching conditions specified by the 

if-match  clauses in the node are satisfied. The apply clauses specify the actions performed after a 

matching test against the node is successful, and the actions can be the attribute settings of routing 

information. 

There is an OR relationship between different nodes in a route policy. As a result, the system examines 

the nodes in the route policy in sequence, and once the route matches a node in the route policy, it will 

pass the matching test of the route policy without entering the test of the next node. 

Complete the following tasks to configure an IP route policy: 

Defining a Route Policy 

Required 

Defining if-match Clauses and 
apply Clauses 

Required 

 

A route policy is used to match given routing information or some attributes of routing information and 

change the attributes of the routing information if the conditions are met. The above-mentioned filtering 

lists can serve as the match conditions: 

A route policy can comprise multiple nodes and each node comprises:  

z 

if-match clause: Defines matching rules; that is, the filtering conditions that the routing information 

should satisfy for passing the current route policy. The matching objects are some attributes of the 

routing information. 

z 

apply  clause: Specifies actions, which are the configuration commands executed after a route 

satisfies the filtering conditions specified by the if-match clause. Thereby, some attributes of the 

route can be modified. 

Before configuring a route policy, perform the following tasks:  

z 

Configuring a filtering list, 

z 

Configuring a routing protocol 

Prepare the following data before the configuration: 

z 

Route policy name and node number