Overview
• Traffic prioritization
provides time-sensitive packets (like VoIP and video) with priority over other traffic based on DSCP or IEEE 802.1p classification; packets are mapped to eight hardware queues for more effective throughput
• IEEE 802.1p/Q
delivers data to devices based on the priority and type of traffic; supports IEEE 802.1Q
• Class of Service (CoS)
sets the IEEE 802.1p priority tag based on IP address, IP Type of Service (ToS), Layer 3 protocol, TCP/UDP port number,source port, and DiffServ
• Broadcast control
allows limitation of broadcast traffic rate to cut down on unwanted network broadcast traffic
• Advanced Classifier based QoS
classifies traffic using multiple match criteria based on Layer 2, 3, and 4 information; applies QoS policies such as setting priority level and rate limit to selected traffic on a per-port basis
• Rate limiting
sets per-port ingress enforced maximums and per-port, per-queue minimums
• Powerful QoS feature
supports the following congestion actions: strict priority queuing (SP), weighted round robin (WRR) queuing, and
SP+WRR
