Spanning-Tree Operation

802.1D Spanning-Tree Protocol (STP)

In this example, ports 2 and 3 have already been configured as a port trunk (Trk1), which appears at the end of the port listing.

All ports (and the trunk) are in their default STP configuration.

Note: In the actual menu screen, you must scroll the cursor down the port list to view the trunk configuration (ports A2 and A3).

Figure 5-17. The Spanning Tree Operation Screen

4.On the ports and/or trunks you want to use for redundant fast uplink connections, change the mode to Uplink. In this example, port A1 and Trk1 (using ports A2 and A3) provide the redundant uplinks for STP:

a.Press [E] (for Edit), then enable STP on the switch by using the Space bar to select Yes in the Spanning Tree Enabled field.

b.Use [Tab] to move to the Mode field for port A1.

c.Use the Space bar to select Uplink as the mode for port A1.

d.Use [v] to move to the Mode field for Trk1.

e.Use the Space bar to select Uplink as the Mode for Trk1.

f.Press [Enter] to return the cursor to the Actions line.

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