H3C S7500 Series Operation Manual page 412

Operation Manual – Routing Protocol
H3C S7500 Series Ethernet Switches
Define an if-match clause to
match the AS path field of
BGP routing information
Define an if-match clause to
match the community
attribute of BGP routing
information
Define an if-match clause to
match the destination IP
address of routing information
Define an if-match clause to
match the next-hop interface
of routing information
Define an if-match clause to
match the next-hop address
of routing information
Define an if-match clause to
match the cost of routing
information
Define an if-match clause to
match the tag field of RIP or
OSPF routing information
By default, no if-match clause is defined.
Note:
The relationship among the if-match clauses for a node specified in the
route-policy is logical "AND". Routing information passes the match test against
the node only when it satisfies all the matching conditions specified by the
if-match clauses. Once a match is found, the system executes the apply clauses.
If no if-match clause is defined for a node, all routing information will pass the
match test of the node.
III. Define apply Clauses for a Node
The apply clauses specify the actions to be performed after all the filtering conditions
of the if-match clauses of a node are satisfied. The actions include modifying some
attributes of routing information.
Follow these steps to define apply clauses:
To do...
if-match as-path as-path-number
if-match community
{ basic-community-number
[ whole-match ] |
adv-community-number }
if-match { acl acl-number |
ip-prefix ip-prefix-name }
if-match interface interface-type
interface-number
if-match ip next-hop { acl
acl-number | ip-prefix
ip-prefix-name }
if-match cost value
if-match tag value
Chapter 7 IP Routing Policy Configuration
Use the command...
7-5
Remarks
Optional
Optional
Optional
Optional
Optional
Optional
Optional