Access ingress QoS policies

This section describes the access ingress QoS policies supported on the 7210 SAS-Mxp, 7210 SAS-R6, 7210 SAS-R12, 7210 SAS-Sx/S 1/10GE (standalone), and 7210 SAS-Sx 10/100GE (standalone).

An access ingress QoS policy defines the ingress QoS processing for packets received on the access port when the configure port ethernet access-ingress-qos-mode command is set to port-mode.

When the access-ingress-qos-mode command is set to sap-mode, no access ingress QoS policy can be attached to the port. When the access-ingress-qos-mode command is set to port-mode, access ingress policy 1 is attached by default, and this policy can be replaced with a user-defined access ingress QoS policy.

The access ingress QoS policy defines the ingress classification rule that uses dot1p and IP DSCP values from the packet header to map traffic flows to up to eight (8) FCs and assign a profile at ingress. In addition, an option exists to use DEI with dot1p classification for color assignment. Each FC can be associated with up to two (2) meters: one meter for unicast traffic and another for multipoint traffic (that is, broadcast, multicast and unknown-unicast traffic). The user can configure meter characteristics, such as CIR and PIR rates, committed burst size (CBS) and maximum burst size (MBS), and so on.

Define the following to configure a basic access ingress QoS policy:

a unique service access QoS policy ID
parameters that can be configured for a meter, as described in Meter/policer parameters
dot1p and DSCP classification policy to map dot1p and IP DSCP values to the FC
an optional configuration to choose either IP DSCP or dot1p values, both, or the default FC values for classification
an optional configuration to assign an access ingress profile for use with a color-aware meter using either a dot1p, DEI with dot1p, or IP DSCP

Access ingress QoS policy ID 1 is reserved as the default policy for access ports to which an access ingress policy is not explicitly assigned. The following table lists the characteristics of the default policy.

Table: Default access ingress policy ID 1 definition for 7210 SAS-Mxp, 7210 SAS-R6, 7210 SAS-R12, 7210 SAS-Sx/S 1/10GE, and 7210 SAS-Sx 10/100GE
Item	Definition
Meter 1	1 (one) meter all unicast traffic: Mode: trtcm1 Adaptation rule: cir closest pir closest CIR = 0 PIR = max Color mode: color-aware MBS, CBS = default kbits (values derived from applicable policy)
Meter 9	1 (one) meter all multicast traffic: Mode: trtcm1 Adaptation rule: cir closest pir closest CIR = 0 PIR = max Color mode: color-aware MBS, CBS = default kbits (values derived from applicable policy)
Default FC (be)	1 (one) flow defined for all traffic: All traffic mapped to best-effort (be) Counter mode: in-out-profile-count dot1p-classification 1 (default dot1p classification policy) dscp-classification 1 (default IP DSCP classification policy) table-classification-criteria: both-dscp-dot1p num-qos-classifiers = 4