Chapter 18. Frame Relay Class-Based Weighted Fair Queuing (CBWFQ) and Low Latency Queuing (LLQ)

By now, readers should be familiar with congestion management on Frame Relay networks and how queuing can be used to effectively manage network congestion. Generally, when a network becomes congested and there is insufficient bandwidth to service all user traffic, queuing algorithms can influence the transmission order of packets belonging to different priority levels which are held in the queues. Intelligent queuing provides differentiated services (DiffServ) to the different classes of traffic on the Frame Relay network to manage network congestion. When congestion management mechanisms are effectively deployed with other QoS components such as Traffic ...

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