Huawei Quidway S8500 Series User Manual

Command Manual – QoS/ACL
Quidway S8500 Series Routing Switches Chapter 2 QoS Commands
Huawei Technologies Proprietary
2-26
cos3-map-drop-prec: Mapping value from CoS 3 to drop precedence, in the range of 0
to 2.
cos4-map-drop-prec: Mapping value from CoS 4 to drop precedence, in the range of 0
to 2.
cos5-map-drop-prec: Mapping value from CoS 5 to drop precedence, in the range of 0
to 2.
cos6-map-drop-prec: Mapping value from CoS 6 to drop precedence, in the range of 0
to 2.
cos7-map-drop-prec: Mapping value from CoS 7 to drop precedence, in the range of 0
to 2.
Description
Use the qos cos-drop-precedence-map command to configure the “CoS — >
Drop-precedence” mapping table.
Use the undo qos cos-drop-precedence-map command to restore the default values
of the “CoS —> Drop-precedence” mapping table.
The system provides “CoS —> Drop-precedence” mapping table as the default value.
Table 2-3 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
After receiving a packet, the switch allocates a set of service parameters to it according
to a specific rule. The service parameters, including CoS value, local precedence and
drop level, are determined according to the packet 802.1p priority value. CoS value is
the packet 802.1p priority value, while local and drop precedence values are obtained
according to the “CoS — > Local-precedence” mapping table and the “CoS — >
Drop-precedence” mapping table. You can modify the CoS —> Drop-precedence
mapping table using this command.

Huawei Quidway S8500 Series Specifications

General

Brand	Huawei
Model	Quidway S8500 Series
Category	Switch
Language	English