Creating A Route Policy; Defining If-Match Clauses - 3Com 4500G Family Configuration Manual

Name of the route policy, and node numbers
Match criteria
Attributes to be modified

Creating a Route Policy

Follow these steps to create a route policy:
To do...
Enter system view
Create a route policy, specify a
node for it and enter route
policy node view
If a route policy node has the permit keyword specified, routing information matching all the
if-match clauses of the node will be handled using the apply clauses of this node, without needing
to match against the next node. If routing information does not match the node, it will go to the next
node for a match.
If a route policy node has the deny keyword specified, the apply clauses of the node will not be
executed. When routing information matches all the if-match clauses of the node, it cannot pass
the node, or go to the next node. If route information cannot match all the if-match clauses of the
node, it will go to the next node for a match.
When a route policy has more than one node, at least one node should be configured with the
permit keyword. If the route policy is used to filter routing information, routing information that does
not meet any node cannot pass the route policy. If all nodes of the route policy are set with the
deny keyword, no routing information can pass it.

Defining if-match Clauses

Follow these steps to define if-match clauses for a route-policy node:
To do...
Enter system view
Enter route policy node view
Define Match IPv4 routing
match information specified in
criteria the ACL
for IPv4
Match IPv4 routing
routes
information specified in
the IP prefix list
Use the command...
system-view
route-policy route-policy-name { permit |
deny } node node-number
Use the command...
system-view
route-policy
route-policy-name { permit |
deny } node node-number
if-match acl acl-number
if-match ip-prefix
ip-prefix-name
1-5
Remarks
—
Required
Remarks
—
Required
Optional
Not configured by default.