Configuring A Layer 3 Classifier - Huawei S9700 Series Configuration Manual

S9700 Core Routing Switch
Configuration Guide - SPU
By default, the aging time of the UDP traffic forwarding table is 120s.
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6.3.10 Configuring a Layer 3 Classifier

This section describes how to create a Layer 3 classifier and configure a matching rule.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
load-balance l3classifier l3classifier-name
A Layer 3 classifier is created and the Layer 3 classifier view is displayed.
By default, no Layer 3 classifier is created.
Step 3 Run:
if-match acl acl-number
An ACL is bound to the Layer 3 classifier.
A Layer 3 classifier can be bound to only one ACL. If the if-match acl acl-number command
is run for multiple times in the same Layer 3 classifier view, the latest configuration takes effect.
By default, no ACL is bound to a Layer 3 classifier.
Step 4 Run:
l7classifier l7classifier-name action action-name
The Layer 7 classifier and action are bound to the Layer 3 classifier.
The SPU first matches packets with the ACL in a Layer 3 classifier, and then matches packets
with the rule in a Layer 7 classifier.
By default, a Layer 3 classifier is not bound to any Layer 7 classifier and action.
Step 5 (Optional) Run:
icmp-reply
The SPU is configured to respond to ping requests of users.
In egress link load balancing, if the SPU is required to respond to ping requests of users, you
need to use the icmp-reply command.
By default, the SPU does not respond to ping requests of users.
Issue 01 (2012-03-15)
NOTE
l If the SPU is required to respond to ping requests of users, ping request packets of users must match
the ACL in the Layer 3 classifier.
l If the ACL in the Layer 3 classifier for matching the source and destination IP addresses is set to
any, the SPU responds to any ping request of users. In this case, the ACL is invalid. Therefore, you
need to configure the ACL in a Layer 3 classifier with caution.
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