Network QoS policies on access-uplink ports

Network QoS policies define egress QoS marking and ingress QoS interpretation for traffic on received on access-uplink ports.

A network QoS policy defines both the ingress and egress handling of QoS on the access uplink ports. The following functions are defined:

• ingress

  • option to use dot1p value mapping to FCs and profile

  • option to use IP DSCP value to map traffic to different FCs and profile

  • defines FC to ingress queue mapping

• egress

  • option to define the FC and profile to dot1p value markings

  • option to define the FC and profile to IP DSCP value marking

  • remarking of QoS bits can be enabled or disabled

The required network QoS policy element definitions are the following:

• a unique network QoS policy ID

• egress - FC and optional profile state to priority bits (for example, 802.1p, and so on) used for marking, for each FC

• a default ingress FC and an optional in-profile/out-of-profile state

• at least one default unicast FC queue. The parameters that can be configured for a ingress queue are discussed below.

The optional network QoS policy element definitions are the following:

• additional queues

• dot1p value to FC and profile state mappings for all values received

• option to use DEI bit along with dot1p classification for profile state mapping

• option to use IP DSCP value to FC and profile state mappings for all DSCP values received