3Com Switch 7750 Configuration Guide Guide

Configuring Priority Remark 625
<SW7750> system-view
[SW7750] qos cos-local-precedence-map 2 3 4 1 7 0 5 6
[SW7750] display qos cos-local-precedence-map
cos-local-precedence-map:
cos : 0 1 2 3 4 5 6 7
--------------------------------------------------------------------------
local-precedence : 2 3 4 1 7 0 5 6
Configuring Priority
Remark
Refer to “Priority Remark” for the introduction to priority remark.
Priority remark can be implemented in the following ways:
■ Through TP (only non-type-A I/O Modules support this function). When
configuring TP, you can define the action of remarking the DSCP precedence
for the packets exceeding the traffic limit. Refer to
“Configuration Procedure
of TP”.
■ Through the traffic-priority command. Refer to the following description in
this section.
Configuration
Prerequisites
■ ACL rules used for traffic identifying are defined. Refer to the ACL module in
the book for defining ACL rules
■ The type and value of the precedence that the packets matching with ACL
rules are remarked are specified
■ The ports which need this configuration are specified
Configuration Procedure
Table 495 Configure priority remark
Operation Command Description
Enter system view system-view -
Enter Ethernet port view
interface interface-type
interface-number
-
Enter QoS view qos -
Use ACL rules in traffic
identifying and specify a new
precedence for the packet
matching with the ACL rules
traffic-priority { inbound |
outbound } acl-rule [
system-index system-index ]
{ { dscp dscp-value |
ip-precedence pre-value } |
local-precedence pre-value
}*
Required
Type-A I/O Modules support
this command
traffic-priority inbound
acl-rule [ system-index
system-index ] { { dscp
dscp-value | ip-precedence
pre-value } | { cos cos |
local-precedence pre-value }
}*
Optional
Non-type-A I/O Modules
support this command
Display the parameter
configurations of priority
remark
display qos-interface [
interface-type
interface-number ]
traffic-priority
Optional
You can execute the display
command in any view
Display all the QoS settings of
the port
display qos-interface [
interface-type
interface-number ] all