Low latency queuing (LLQ) is actually a strict priority queue within class-based weighted fair
queuing (CBWFQ), discussed in the next section. LLQ is Cisco’s solution for voice and other
very small packets that require real-time processing. LLQ operates by prioritizing key packets
to the front of the queue. Because these packets are small by nature, there is little risk of queue
starvation or other problems. However, administrators should evaluate the demands of other
traffic within the network.