H3C Technologies H3C S7500E Series Switches - Manual (Page 364)

12-7
z 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.
z 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.
z 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… Use the command… Remarks
Enter system view system-view —
Enter route policy node view
route-policy route-policy-name
{ deny | permit } node node-number
Required
Match IPv4 routing
information specified
in the ACL
if-match acl acl-number
Match IPv4 routing
information specified
in the IP prefix list
if-match ip-prefix ip-prefix-name
Optional
Not configured by
default.
Define match criteria
for IPv4 routes
Match IPv4 routing
information whose
next hop or source is
specified in the ACL
or IP prefix list
if-match ip { next-hop |
route-source } { acl acl-number |
ip-prefix ip-prefix-name }
Optional
Not configured by
default.
Match IPv6 routing information whose next
hop or source is specified in the ACL or IP
prefix list
if-match ipv6 { address | next-hop |
route-source } { acl acl-number |
prefix-list ipv6-prefix-name }
Optional
Not configured by
default.