The lesson discusses how output queuing mechanisms are implemented on Cisco routers running Cisco IOS. It discusses most of the queuing mechanisms in detail, except Class-based Weighted Fair Queuing and Class-based Low-latency Queuing, which are discussed in the “IP QoS – Modular QoS CLI (Chapter 2)” module. | Queuing Mechanisms Overview This module describes the queuing mechanisms that can be used on output interfaces. It includes the following topics Queuing Overview FIFO Queuing Priority Queuing Custom Queuing Weighted Fair Queuing Distributed Weighted Fair Queuing Modified Deficit Round-robin IP RTP Prioritization Objectives Upon completion of this module you will be able to perform the following tasks Describe and configure FIFO Queuing FQ Describe and configure Priority Queuing PQ Describe and configure Custom Queuing CQ Describe and configure basic Weighted Fair Queuing WFQ distributed WFQ ToS-based distributed WFQ and QoS-group-based distributed WFQ Describe and configure Modified Weighted Round-robin MDRR queuing Describe and configure IP RTP Prioritization Queuing Overview Objectives Upon completion of this lesson you will be able to perform the following tasks Understand how queuing works on Cisco routers List the most used queuing mechanisms 3-2 Queuing Mechanisms Copyright 2001 Cisco Systems Inc. Queuing in Cisco IOS - . - . Cisco routers running Cisco IOS have a number of different queuing mechanisms This module focuses on the following - First In First Out FIFO - Priority Queuing PQ - Custom Queuing CQ - Weighted Fair Queuing WFQ with the different distributed versions - Modified Deficit Round Robin MDRR - IP RTP Prioritization These mechnisms are implemented as software queues 2001 Cisco Systems Inc. C LL Queuing Mechanisms-5 The lesson discusses how output queuing mechanisms are implemented on Cisco routers running Cisco IOS. It discusses most of the queuing mechanisms in detail except Class-based Weighted Fair Queuing and Class-based Low-latency Queuing which are discussed in the IP QoS - Modular QoS CLI Chapter 2 module. Copyright 2001 Cisco Systems Inc. Queuing Mechanisms .
