Applying the DiffServ Domain

Procedure

• Apply a DiffServ domain to an Ethernet interface.
  1. Run system-view

     The system view is displayed.

  2. Run interface interface-type interface-number

     The interface view is displayed.

  3. (Optional) Run undo portswitch

     The interface is switched to Layer 3 mode.

     By default, an Ethernet interface works in Layer 2 mode.

     Before switching the interface to Layer 3 mode, ensure that the interface has no Layer 2 configuration. Otherwise, the command cannot be executed.

  4. Run trust upstream { ds-domain-name | none }

     A DiffServ domain is bound to the interface.

     By default, the DiffServ domain default is applied to the interface.

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

  5. (Optional) Run qos phb marking dscp enable

     PHB-to-DSCP mapping is enabled for outgoing packets.

     By default, PHB-to-DSCP mapping is not enabled for outgoing packets.

  6. (Optional) Run qos phb marking 8021p disable

     PHB-to-802.1p mapping is disabled for outgoing packets.

     By default, PHB-to-802.1p mapping is enabled for outgoing packets.

  7. Run commit

     The configuration is committed.

• Apply a DiffServ domain to a Layer 2 sub-interface.
  1. Run system-view

     The system view is displayed.

  2. Run interface interface-type interface-number.subnum mode l2

     The Layer 2 sub-interface view is displayed.

  3. Run trust upstream { ds-domain-name | none }

     A DiffServ domain is applied to the Layer 2 sub-interface.

     By default, the DiffServ domain default is applied to the Layer 2 sub-interface.

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

     When a Layer 2 sub-interface uses QinQ encapsulation, only the DiffServ domain default is supported.

  4. Run commit

     The configuration is committed.