Operation Manual – Routing Protocol
Quidway S3900 Series Ethernet Switches-Release 1510 Chapter 5 IP Routing Policy Configuration
Huawei Technologies Proprietary
5-4
Note:
z 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.
z 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-match clauses 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.
z 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.
5.3.3 Defining if-match Clauses and apply Clauses
Table 5-3 Define if-match clauses and apply clauses
Operation Command Description
Enter system view
system-view
—
Define a route-policy
and enter the
route-policy view
route-policy route-policy-name
{ permit | deny } node node-number
Required
Define a rule to
match the IP address
of routing information
if-match { acl acl-number | ip-prefix
ip-prefix-name }
Optional
By default, no
matching is
performed on the
address of routing
information.
Define a rule to
match the routing
cost of routing
information
if-match cost value
Optional
By default, no
matching is
performed on the
routing cost of
routing information.
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