3Com SuperStack 4 Configuration Manual page 146

158 C 6: IP R
HAPTER OUTING
P O
ROTOCOL PERATION
Table 164 Defining if-match Conditions
Operation
Cancel the matched next-hop of
the routing information set by the
address prefix list
Match the routing cost of the
routing information
Cancel the matched routing cost of
the routing information
Match the tag domain of the OSPF
routing information
Cancel the tag domain of the
matched OSPF routing information
By default, no matching is performed.
The clauses for a node in the route policy require that the route satisfy
if-match
all the clauses to match the node before the actions specified by the
can be executed.
If no clauses are specified, all the routes will pass the filtering on the
if-match
node.
Defining Apply Clauses for a Route Policy
The clauses specify actions, which are the configuration commands
apply
executed after a route satisfies the filtering conditions that are specified in the
clauses. In this way, some attributes of the route can be modified.
if-match
Perform the following configurations in Route Policy View.
Table 165 Defining Apply Clauses
Operation
Set the routing cost of the routing information
Cancel the routing cost of the routing information
Set the tag domain of the OSPF routing information
Cancel the tag domain of the OSPF routing information
By default, no apply clauses are defined.
Importing Routing Information Discovered by Other Routing Protocols
A routing protocol can import the routes that are discovered by other routing
protocols to enrich its route information. The route policy can filter route
information to implement the redistribution. If the destination routing protocol
that imports the routes cannot directly reference the route costs of the source
routing protocol, you should satisfy the requirement of the destination protocol by
specifying a route cost for the imported route.
Command
undo if-match ip next-hop ip-prefix
cost
if-match cost
undo if-match cost
value
if-match tag
undo if-match tag
Command
apply cost
undo apply cost
apply tag
undo apply tag
clauses
apply
value
value