Cisco IP Telephony self-study: QoS Weighted Random Early Detection (WRED)

Overview This practical study aid, taken from Cisco Press' Cisco IP Telephony Flash Cards and Exam Practice Pack, prepares you for the Weighted Random Early Detection (WRED) questions on Cisco's QOS exam 642-642—required for Cisco IP Telephony certification.

These flash cards review the need for WRED and help you familiarize yourself with the inner workings of the industry-standard Random Early Detection (RED) approach, in addition to the configuration of WRED. Even though WRED can be configured from interface-configuration mode or as part of a Modular Quality of Service Command-Line Interface (MQC) configuration, these flash cards focus specifically on WRED's MQC implementation. Finally, these cards also review the characteristics and configuration of the Explicit Congestion Notification (ECN) mechanism.

Title: Cisco IP Telephony Flash Cards and Exam Practice Pack
ISBN: 1587201283
Published: October 6, 2004
Author: Kevin Wallace
Chapter: QOS Section 6: Weighted Random Early Detection (WRED)
Published by Cisco Press