H3C S7500E Series Ethernet Switches Operation Manual

Operation Manual – IPv6 Routing
H3C S7500E Series Ethernet Switches Chapter 6 Routing Policy Configuration
6-6
 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.
6.3.3 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
Required
Match IPv6 routes having
the next hop or source
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
Match IPv6 BGP routes
having AS path attributes
specified in the AS path
list (s)
if-match as-path
as-path-number&<1-16>
Optional
Not configured by default
Match IPv6 BGP routes
having community
attributes in the specified
community list(s)
if-match community
{ basic-community-list-nu
mber [ whole-match ] |
adv-community-list-numb
er }&<1-16>
Optional
Not configured by default
Match routes having the
specified cost
if-match cost value
Optional
Not configured by default