qos phb marking enable
Function
The qos phb marking enable command enables PHB mapping for outgoing packets on an interface.
The undo qos phb marking enable command disables PHB mapping for outgoing packets on an interface.
By default, PHB mapping is disabled for outgoing packets on an interface.
Usage Guidelines
Scenario
After the undo qos phb marking enable command is executed on the interface of the edge node in a DiffServ domain, PHB mapping is disabled on the interface connected to a device that does not belong to the DiffServ domain.
Precautions
The trust upstream none command is executed to disable PHB mapping on an interface. After the trust upstream none command is executed, the system does not perform PHB mapping for incoming and outgoing packets on the interface. Unlike the trust upstream none command, after the undo qos phb marking enable command is executed, the system does not perform PHB mapping for outgoing packets on the interface but performs PHB mapping for incoming packets on the interface.
