Cabletron Systems TSX-1620 User Manual

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

Contents

The Spanning Tree Port Parameters Window3-27Using the TSX-1620 Bridge ViewChanging 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.3. In the Spanning Tree Protocol window, click on the Spanning Tree Port Tablebutton.or1. In the Bridge Traffic View, click mouse button 3 on a port to display the Portmenu and drag down to Spanning Tree.The scroll list at the top of the window lists each bridge port available on thedevice and its current port priority. Below the Port List, the window includes thefollowing:Priority (Port)If two or more ports on the same bridge are connected to the same networksegment, each port will receive the same device-level values for Root ID, RootCost, and Bridge ID in Configuration BPDUs. In this case, the BPDU’s port-levelinformation—the transmitting port’s identifier and its manageable PriorityNOTESetting Spanning Tree Port Parameters only affects port selection on a particular bridge;settings do not affect the TSX-1620’s device-level priority in the network’s Spanning Tree.