3Com WX3000 operation manual Defining a Route Policy, Defining if-match Clauses and apply Clauses

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Match conditions

Route attributes to be changed

Defining a Route Policy

Follow these steps to define a route policy:

To do...	Use the command...	Remarks
Enter system view	system-view	—
Define a route policy and enter	route-policy route-policy-name{ permit	Required
the route policy view	deny } node node-number	Not defined by default

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The permit argument specifies the matching mode for a defined node in the route policy to be in permit mode. If a route matches the rules for the node, the apply clauses for the node will be executed and the test of the next node will not be taken. If not, however, the route takes the test of the next node.

The deny argument specifies the matching mode for a defined node in the route policy to be in deny mode. In this mode, no apply clause is executed. If a route satisfies all the if-matchclauses of the node, no apply clause for the node will be executed and the test of the next node will not be taken. If not, however, the route takes the test of the next node.

If multiple nodes are defined in a route policy, at least one of them should be in permit mode. When a route policy is applied to filtering routing information, if a piece of routing information does not match any node, the routing information will be denied by the route policy. If all the nodes in the route policy are in deny mode, all routing information will be denied by the route policy.

Defining if-match Clauses and apply Clauses

Follow these steps to define if-match clauses and apply clauses:

To do...		Use the command...		Remarks
Enter system view		system-view	—
Enter the route-policy		route-policy
		route-policy-name { permit		Required
view
		deny } node node-number
Define a rule to match the				Optional
IP address of routing		if-match acl acl-number		By default, no matching is performed on
information				the address of routing information.
Define a rule to match the				Optional
		if-match cost value		By default, no matching is performed
cost of routes				against the cost of routes.
Define a rule to match the		if-match interface		Optional
				By default, no matching is performed on
next-hop interface of		interface-type
				the next-hop interface of routing
routing information		interface-number
				information.
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