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GS700TR Smart Switch Software Administration Manual
Configuring Switching Information 3-19
v1.0, May, 2008
Multiple Spanning Tree Protocol (MSTP) supports multiple instances of Spanning Tree to
efficiently channel VLAN traffic over different interfaces. Each instance of the Spanning Tree
behaves in the manner specified in IEEE 802.1w, Rapid Spanning Tree (RSTP), with slight
modifications in the working but not the end effect (chief among the effects, is the rapid
transitioning of the port to ‘Forwarding’). The difference between the RSTP and the traditional
STP (IEEE 802.1d) is the ability to configure and recognize full duplex connectivity and ports
which are connected to end stations, resulting in rapid transitioning of the port to ‘Forwarding’
state and the suppression of Topology Change Notification. These features are represented by the
parameters ‘pointtopoint’ and ‘edgeport’. MSTP is compatible to both RSTP and STP. It behaves
appropriately to STP and RSTP bridges. A MSTP bridge can be configured to behave entirely as a
RSTP bridge or a STP bridge.
The Spanning Tree folder contains links to the following features:
• “STP Switch Configuration/Status” on page 3-19
• “CST Configuration” on page 3-21
• “CST Port Configuration” on page 3-23
• “CST Port Status” on page 3-25
• “Rapid STP Configuration” on page 3-26
• “Click Refresh to update the information on the screen with the most current data.” on
page 3-27
• “MST Port Configuration” on page 3-29
• “STP Statistics” on page 3-32
STP Switch Configuration/Status
The Spanning Tree Switch Configuration/Status page contains fields for enabling STP on the
switch.
To display the Spanning Tree Switch Configuration/Status page:
1. Click Switching > STP > Basic > STP Configuration in the navigation tree.
Note: For two bridges to be in the same region, the force version should be 802.1s and
their configuration name, digest key, and revision level should match. For more
information about regions and their effect on network topology, refer to the IEEE
802.1Q standard.