Redundancy

Introduction

Use the Redundancy page to enable and disable the Rapid Spanning Tree Protocol (RSTP) for switch ports 3 and 4.

NOTE: Because only switch ports 3 and 4 support RSTP redundancy, use ports 3 and 4 to connect the 140NOC78•00 head module to the network, and ports 1 and 2 for connections to local devices.

The RSTP service creates a loop-free logical network path for Ethernet devices that are part of a topology that includes redundant physical paths, and automatically restores network communication by activating redundant links in the event the network experiences a service interruption.

Redundancy Display

The Redundancy page looks like this:

To open this page:

Step	Action
1	Starting at the Home page, click the Diagnostics main menu item. Result: The Diagnostics page opens.
2	On the left side of the Diagnostics page, select Ethernet → Switch → Redundancy.
3	If necessary, type in the HTTP web access password. NOTE: The default password is USER.