Pre-configured composite operations for QoS lists

Last Updated : Nov 06, 2012 |
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The following table lists the pre-configured entries in the composite operation table for rules in a QoS list:
No
Name
CoS
DSCP
Trust
0
CoS0
cos0
no change
No
1
CoS1
cos1
no change
No
2
CoS2
cos2
no change
No
3
CoS3
cos3
no change
No
4
CoS4
cos4
no change
No
5
CoS5
cos5
no change
No
6
CoS6
cos6
no change
No
7
CoS7
cos7
no change
No
9
No-Change
no change
no change
No
10
Trust-DSCP
-
-
DSCP
11
Trust-DSCP-CoS
-
-
DSCP and CoS
Each column represents the following:
No A number identifying the operation
Name A name identifying the operation. Use this name to attach the operation to a rule.
CoS The operation sets the Ethernet IEEE 802.1p CoS field in the packet to the value listed in this column
DSCP The operation sets the DSCP field in the packet to the value listed in this column
Trust Determines how to treat packets that have been tagged by the originator or other network devices. If the composite operation is set to Trust-DSCP, the packet’s CoS tag is set to 0 before the QoS list rules and DSCP map are executed. If the composite operation is set to CoSX, the DSCP map is ignored, but the QoS list rules are executed on the Ethernet IEEE 802.1p CoS field. (For example, the composite operation CoS3 changes the CoS field to 3.) If the composite operation is set to Trust-DSCP-CoS, the operation uses the greater of the CoS or the DSCP value. If the composite operation is set to No Change, the operation makes no change to the packet’s QoS tags.
Related links
Composite operations