The default shared queue QoS policy conforms to the following:
There is only one default shared queue policy in the system.
The default shared queue policy has fixed forwarding classes, queues, and FC-queue mapping, which cannot be modified, added, or deleted.
The only configurable entities in the default shared queue policy are the queue attributes, queue priority, and the description string. The queue priority for a shared queue can be changed to expedited, best-effort or auto-expedited.