Apply clause, Relationship between the match mode and clauses, Configuring pbr – H3C Technologies H3C SecBlade NetStream Cards User Manual

Page 94: Defining a policy

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apply clause

The following types of apply clauses are available: apply ip-precedence, apply output-interface, apply

ip-address next-hop, apply default output-interface, and apply ip-address default next-hop.
For the priorities of the apply clauses in a policy node, see

Table 10

.

Table 10 Priorities of the apply clauses in a policy node

Clause Meaning Priority

apply ip-precedence Sets an IP precedence

If configured for public network forwarding, that is, the
apply access-vpn vpn-instance clause is not
configured, this clause will always be executed.

apply
output-interface and

apply ip-address

next-hop

Sets the outgoing interface
and next hop

The apply output-interface clause takes precedence
over the apply ip-address next-hop clause. This means

that only the apply output-interface clause will be

executed when both are configured.

apply default
output-interface and

apply ip-address

default next-hop

Sets the default outgoing
interface and default next
hop

The apply default output-interface clause takes
precedence over the apply ip-address default next-hop

clause. This means that only the apply default
output-interface clause is executed when both are

configured.
They take effect only when no outgoing interface or

next hop is defined for packets, or the defined outgoing
interface or next hop is invalid and the destination

address does not match any route in the routing table.

Relationship between the match mode and clauses

If a packet…

Then…
In permit mode

In deny mode

Matches all the if-match clauses
on a policy node

The apply clause is executed, and
the packet will not go to the next

policy node for a match.

The apply clause is not executed, the
packet will not go to the next policy

node for a match, and will be

forwarded according to the routing

table.

Fails to match an if-match clause
on the policy node

The apply clause is not executed,
and the packet will go to the next
policy node for a match.

The apply clause is not executed,
and the packet will go to the next
policy node for a match.

The nodes of a policy are in an OR relationship. If a packet matches a node, it passes the policy; if the

packet does not match any node of the policy, it fails to pass the policy and is forwarded according to

the routing table.

Configuring PBR

Defining a policy

Follow these steps to define a policy:

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