set class-of-service pfc-uplink-group original-dscp dscp

The set class-of-service pfc-uplink-group original-dscp dscp command modifies the DSCP value of hook flow packets that match the PFC uplink port group and the original DSCP value.

The delete class-of-service pfc-uplink-group original-dscp dscp command deletes the configuration.

NOTE:

When configuring or deleting on the Trident3-X5 and Trident3-X7 platforms, the following two commands both need to be configured and submitted in the same commit.

set class-of-service pfc-uplink-group <group-name> original-dscp <origin-value> to-code-point <queue>

set class-of-service pfc-uplink-group <group-name> original-dscp <origin-value> dscp <value>

Command Syntax

set class-of-service pfc-uplink-group <group-name> original-dscp <origin-value> dscp <value>

delete class-of-service pfc-uplink-group <group-name> original-dscp <origin-value> dscp

Parameter

Parameter	Description
pfc-uplink-group <group-name>	Specifies the name of the uplink port group. The value is a string.
original-dscp <origin-value>	Specifies the original DSCP value of the hook flow packets that matches the PFC uplink port group. The value is an integer that ranges from 0 to 63.
dscp <value>	Specifies the adjusted DSCP value of hook flow packets that match the PFC uplink port group, ensuring that the hook flow packets are still mapped to the designated queue on downstream devices. The value is an integer that ranges from 0 to 63.

Usage Guidelines

For hook flows that match the PFC uplink port group, the queue priority and DSCP value in the packets will be actively adjusted, changing the path of PFC pause frames to prevent PFC pause frames from forming loops.

Example

Modify the queue priority and DSCP value of hook flow packets that match the PFC uplink port group and the original DSCP value.

admin@PICOS# set class-of-service pfc-uplink-group group1 original-dscp 32 to-code-point 4
admin@PICOS# set class-of-service pfc-uplink-group group1 original-dscp 32 dscp 48
admin@PICOS# commit