On the 7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C, the front-panel ports oversubscribe the capacity of the forwarding processor, with the exception of ports 1/1/1 and 1/1/2 on the 7210 SAS-K 3SFP+ 8C, which are not oversubscribed. A system-defined preclassification scheme is implemented (it is not user-configurable) to prioritize ingress packets for processing by the forwarding processor. It prioritizes packets based on dot1p and DSCP and identifies some of the untagged Layer 2 control protocols into high-priority and low-priority queues maintained on ingress per port. The forwarding processor processes the high-priority queue across all the ports before servicing packets from the lower-priority queues. In addition, the network ports are favored over access ports by allocating more weight to the network ports during scheduling.