H3C S7500E Series Ethernet Switches Operation Manual

Operation Manual – IPv4 Routing
H3C S7500E Series Ethernet Switches Chapter 6 Routing Policy Configuration
6-7
To do… Use the command… Remarks
Enter system view
system-view
—
Create a routing policy
and enter its view
route-policy route-policy-name
{ permit | deny } node node-number
Required
 Note:
z If a node has the permit keyword specified, routing information meeting the node’s
conditions will be handled using the apply clauses of this node, without needing to
match against the next node. If routing information does not meet the node’s
conditions, it will go to the next node for a match.
z If a node is specified as deny, the apply clauses of the node will not be executed.
When routing information matches all if-match clauses of the node, it can neither
pass the node, nor go to the next node. If route information cannot match any
if-match clause of the node, it will go to the next node for a match.
z When a routing policy is defined with more than one node, at least one node should
be configured with the permit keyword. If the routing policy is used to filter routing
information, routing information that does not meet any node’s conditions cannot
pass the routing policy. If all nodes of the routing policy are set using the deny
keyword, no routing information can pass it.
6.4.3 Defining if-match Clauses for the Routing Policy
Follow these steps to define if-match clauses for a route-policy:
To do… Use the command… Remarks
Enter system view
system-view
—
Enter routing policy view
route-policy
route-policy-name
{ permit | deny } node
node-number
—
Match IPv4 routes
having destinations
specified in the ACL
if-match acl acl-number
Match IPv4 routes
having destinations
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 routes
having next hops or
sources 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