Cabletron Systems CSX200 User Manual

Also see for SPECTRUM: User guide User guide User guide User guide Guide

Contents

CSX Bridge View3-32The Spanning Tree Port Parameters WindowThe IEEE 802.1d specification recommends that Max Age = 20 seconds, with anallowable range of 6 to 40 seconds.Root Hello TimeThe Hello Time that will be implemented if this bridge is the Root or becomes theRoot.The IEEE 802.1d specification recommends that Hello Time = 2 seconds, with anallowable range of 1 to 10 seconds.The Spanning Tree Port Table button opens the window in which you setSpanning Tree parameters for individual bridge ports; see The Spanning TreePort Parameters Window, page 3-32, for more information.Changing Spanning Tree ParametersTo change the Bridge Priority, Root Forward Delay, Root Max Age, or Root HelloTime:1. In the Spanning Tree Protocol window, highlight the current value of the fieldyou want to change.2. Type the new value in the appropriate text box and press Enter or Return onthe keyboard.The Spanning Tree Port Parameters WindowThe Spanning Tree Algorithm ensures that only a single bridge path existsbetween any two end stations in a network designed with multiple bridgesplaced in parallel; it also ensures that on any given bridge, only one port pathexists between the bridge and any one network segment. In the Spanning TreePort Table you can view and edit the Spanning Tree values for individual ports;the Spanning Tree Port parameters affect a port’s participation in the SpanningTree.To open the Spanning Tree Port Table window:1. Display the Device menu by clicking on the Front Panel button.2. Drag down to Spanning Tree to open the Spanning Tree Protocol window.NOTESetting Spanning Tree Port Parameters only affects port selection on a particular bridge;settings do not affect your device’s device-level priority in the network’s Spanning Tree.