Huawei quidway s3526 series

Command Manual - QoS/ACL
Quidway S3500 Series Ethernet Switches Chapter 2 QoS Commands
Huawei Technologies Proprietary
2-55
undo qos cos-drop-precedence-map
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Parameter
cos0-map-drop-prec: CoS 0 → drop precedence mapping value, in the range of 0~2.
Cos1-map-drop-prec: CoS 1 → drop precedence mapping value, in the range of 0~2.
Cos2-map-drop-prec: CoS 2 → drop precedence mapping value, in the range of 0~2.
Cos3-map-drop-prec: CoS 3 → drop precedence mapping value, in the range of 0~2.
Cos4-map-drop-prec: CoS 4 → drop precedence mapping value, in the range of 0~2.
Cos5-map-drop-prec: CoS 5 → drop precedence mapping value, in the range of 0~2.
Cos6-map-drop-prec: CoS 6 → drop precedence mapping value, in the range of 0~2.
Cos7-map-drop-prec: CoS 7 → drop precedence mapping value, in the range of 0~2.
Description
Using the qos cos-drop-precedence-map command, you can configure “CoS →
Drop-precedence” mapping table. Using the undo qos cos-drop-precedence-map
command, you can restore its default setting.
The following is the default “CoS → Drop-precedence” mapping table.
Table 2-22 Default “CoS → Drop-precedence” mapping table
CoS Value Drop-precedence
0 0
1 0
2 0
3 0
4 0
5 0
6 0
7 0
Upon receiving a packet, the switch allocates a service group set to it, including CoS
value, local precedence value, drop-precedence. The allocation rule is based on the
packet 802.1p priority: use the 802.1p priority value as the CoS value, obtain local
precedence value and drop-precedence respectively from “CoS → Local-precedence”
mapping table and “CoS → Drop-precedence” mapping table.