Cabletron Systems CyberSWITCH CSX400 User Manual

Also see for CyberSWITCH HSIM-W6: Setup guide Configuration guide User guide Installation guide

Contents

Bandwidth-on-Demand (Multilink Protocol) ConfigurationLocal Management User’s Guide2-17The fields for the BoD feature are described as follows:Bandwidth-on-Demand (BoD) option — Specifies whether or not MP support is desired. Tosuccessfully negotiate MP, both devices must support MP. The default setting is DISABLE.Line Utilization (LU) Threshold (LUT)% — Specifies a line utilization threshold (%) value tocompare against the linear weighted percentage by which to determine when more or lessbandwidth is to be added or removed. The default setting is 50.History time in seconds to compute LU Avg. (LUA) — Specifies a time value in seconds overwhich the line utilization percentage is averaged by the linear weighted percentage algorithm. Thedefault setting is 5.# of LUA computation(s) > LUT for when to add BW — Specifies the number of samples forwhich the condition for adding more bandwidth must persist before additional bandwidth is added.This parameter is used to filter out traffic bursts. The value should be chosen such that the time ittakes to add more bandwidth is less than the time the traffic will exceed the “line threshold”. Thiswill avoid the additional cost of adding unnecessary bandwidth. The default setting is 1.# of LUA computation(s) < LUT for when to remove BW — Specifies the number of secondsthat the output has fallen below the line threshold before possible previously added additionalbandwidth is removed. The default value is 5.Maximum # of calls allowed including the 1st call — Specifies the maximum number ofchannels an MP call is allowed. The value accounts for the channel used to establish the original/first link. The default setting is 1.When modifying the “Maximum # of calls allowed” parameter, which accounts for the first call, acheck is first made against the maximum profiles setting for that interface. Although the maximumpossible value allowed is shown to be 20, the true maximum is the current maximum profilessetting for that interface (which cannot exceed 20).# of calls to increase by — Specifies the incremental number of channels by which to increaseadditional bandwidth. Specifically, channels can be added in multiples. The default setting is 1.# of calls to decrease by — Specifies the decremental number of channels by which to removebandwidth. Specifically, channels can be removed in multiples. The default setting is 1.Avg packet size used to determine when to fragment — Specifies the average packet size bywhich to determine when it is best to split a packet. This minimizes the amount of bufferingnecessary at the remote device to maintain packet sequentiality. The default setting is 260.