3Com 5500-SI Configuration Manual page 260

260 C 16: IP R
HAPTER OUTING
P O
ROTOCOL PERATION
Defining a Route Policy
A route policy can include multiple nodes. Each node is a unit for the matching
operation. The nodes are tested against the
Perform the following configurations in System View.
Table 253 Defining a route-policy
Operation
Enter Route Policy View
Remove the specified route-policy
The parameter specifies that if a route satisfies all the
permit
node, the route passes the filtering of the node, and the
are executed without taking the test of the next node. If a route does not satisfy all
the clauses of a node, however, the route takes the test of the next node.
if-match
The parameter specifies that the
deny
satisfies all the
if-match
route does not take the test of the next node. If a route does not satisfy all the
clauses of the node, however, the route takes the test of the next node.
if-match
The router tests the route against the nodes in the route policy in sequence, once a
node is matched, the route policy filtering will be passed.
By default, the route policy is not defined.
If multiple nodes are defined in a route-policy, at least one of them should be in
mode. Apply the route policy to filter routing information. If the routing
permit
information does not match any node, the routing policy denies the routing
information. If all the nodes in the route policy are in deny mode, all routing
information is denied by the route policy.
Defining If-match Clauses for a Route-policy
The clauses define the matching rules that the routing information must
if-match
satisfy to pass the route policy. The matching objects are attributes of the routing
information.
Perform the following configurations in Route Policy View.
Table 254 Defining if-match Conditions
Operation
Match the destination address of
the routing information
Cancel the matched destination
address of the routing information
Match the next-hop interface of the
routing information
Cancel the matched next-hop
interface of the routing information
Match the next-hop of the routing
information
node_number
Command
route-policy route_policy_name { permit |
deny } node { node_number }
undo route-policy route_policy_name [
permit | deny | node node_number ]
clauses are not executed. If a route
apply
clauses of the node, the node denies the route and the
Command
if-match { acl acl_number | ip-prefix
ip_prefix_name }
undo if-match { acl | ip-prefix }
if-match interface{ interface_type_
interface_number }
undo if-match interface
if-match ip next-hop { acl acl_number |
ip-prefix ip_prefix_name }
.
clauses of a
if-match
clauses for the node
apply