... B(Receiver)ResvResvResvResv110 _QoS_ 08 2/13/01 11:49 AM Page 277294 Chapter 8 • Advanced QoS Overviewavailable on the Cisco Call Manager, the Cisco AS5300, and Cisco 3640 routers(IOS 12.1(1)), ... BECNs Work?Continued110 _QoS_ 08 2/13/01 11:49 AM Page 302296 Chapter 8 • Advanced QoS OverviewWRED and IP PrecedenceWeighted random early detection (WRED) is the Cisco implementation of REDthat ... network is not strictly IP, you may not gain the benefitof the IP precedence weighting of WRED.WRED treats non -IP traffic as prece-dence 0, the lowest precedence.Therefore, non -IP traffic, in general,...