G.8032 QoS considerations

Ethernet ring CC messages transmitted over the SAP queues using the default egress QoS policy will use NC (network class) as a forwarding class. If user traffic is assigned to the NC forwarding class, it will compete for the same bandwidth resources with the Ethernet CCMs. Because CCM loss could lead to unnecessary switching of the Ethernet ring, congestion of the queues associated with the NC traffic should be avoided. The operator must configure different QoS policies to avoid congestion for the CCM forwarding class by controlling the amount of traffic assigned into the corresponding queue.

Note:

The operator must configure appropriate ingress QoS policies to ensure that R-APS messages get appropriate QoS treatment and is processed and/or transmitted without delays to enable better failover time.