3com WX3000 User Manual

 

1-19 

z 

Set the IP precedence of ICMP packets to 3. 

z 

Display the configuration.  

Configuration procedure: 

<device> system-view 

[device] protocol-priority protocol-type icmp ip-precedence 3 

[device] display protocol-priority 

Protocol: icmp 

  IP-Precedence: flash(3) 

Refer to 

 for information about marking packet priority.  

Marking packet priority can be implemented in the following two ways: 

z 

Through traffic policing 

When configuring traffic policing, you can define the action of marking the 802.1p priority and DSCP 

precedence for packets exceeding the traffic specification. Refer to 

.  

z 

Through the traffic-priority command 

You can use the traffic priority command to mark the 802.1p priority and DSCP precedence of the 

packets.  

The following items are defined or determined before the configuration:  

z 

The ACL rules used for traffic classification are specified. Refer to the ACL module of this manual 

for related information. 

z 

The type and value of the precedence to be marked for the packets matching the ACL rules are 

determined. 

You can mark priority for all the packets matching specific ACL rules, or for packets that match specific 

ACL rules and are of a VLAN, of a port group, or pass a port. 

Follow these steps to mark the priority for the packets matching specific ACL rules: 

Enter system view 

system-view 

— 

Mark the priorities for packets 
matching specific ACL rules 

traffic-priority inbound acl-rule { dscp 
dscp-value | cos cos-value } 

Required 

 

Follow these steps to mark the priority for packets that are of a VLAN and match specific ACL rules: 

Enter system view 

system-view 

— 

Mark the priorities for packets 
matching specific ACL rules 

traffic-priority vlan vlan-id inbound acl-rule 
{ dscp dscp-value | cos cos-value } 

Required