QoS Policies
7210 SAS D, E, K OS Quality of Service Guide Page 81
the access and access uplink ports. Queue parameters for these 8 queues can be configured as part
of the access egress QoS policy which is applied on the access ports and network queue policy
which is applied on the access uplink ports.
The queue ID 1 to 8 are assigned to each of the 8 queues. Queue-ID 8 is the highest priority and
queue-id 1is the lowest priority. FCs are correspondingly mapped to these queue IDs according to
their priority. The system defined map is as shown in Table 32.
FC to Queue ID mapping for 7210 SAS-K
On 7210 SAS-K, user has an option to define up to 8 queues with an option to define the FC to
queue mapping in service ingress policy, service egress policy, network qos policy and network
queue policy.
QoS Policy Entities
Services are configured with default QoS policies. Additional policies must be explicitly created
and associated. There is one default service ingress QoS policy, one default service egress policy,
one default access egress QoS policy, one default network QoS policy and one default port
scheduler policy. Only one ingress QoS policy and one egress QoS policy can be applied to a SAP
or access/access-uplink port.
When you create a new QoS policy, default values are provided for most parameters with the
exception of the policy ID, descriptions. Each policy has a scope, default action, a description, and
meters for ingress policies and queues for egress policies. By default, all forwarding classes are
mapped to Queue 1.
Table 32: Forwarding Class to Queue-ID Map
FC-ID FC Name FC Designation Queue-ID
7 Network control NC 8
6 High-1 H1 7
5 Expedited EF 6
4 High-2 H2 5
3 Low-1 L1 4
2 Assured AF 3
1 Low-2 L2 2
0 Best-Effort BE 1
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