Applying a DiffServ Domain

Context

You can bind a DiffServ domain to an inbound or outbound interface of packets to enable the device to implement mapping between packet priorities and PHBs/colors according to the mappings defined in the DiffServ domain.

The S5735-L, S5735S-L, S5735S-L-M, S5735-S, S5735-S-I, and S5735S-S support only the default DiffServ domain default. On these switches, you do not need to bind a DiffServ domain to an interface.

Procedure

Run system-view
The system view is displayed.
Run interface interface-type interface-number
The interface view is displayed.
Run trust upstream { ds-domain-name | default | none }
A DiffServ domain is bound to the interface.

If trust upstream none is configured on an interface, the system does not perform priority mapping for incoming and outgoing packets.

To change the DiffServ domain bound to an interface, run the undo trust upstream command to unbind the original DiffServ domain from the interface, and then run the trust upstream command to bind a new DiffServ domain to the interface.
(Optional) Run undo qos phb marking enable
PHB mapping is disabled for outgoing packets.

By default, PHB mapping is enabled for outgoing packets on an interface.