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Spanning Tree/Bridge Settings Page:
Dell™ PowerEdge™ 1655MC Integrated Switch User's Guide

Bridge Settings

From the Bridge Settings page, you can enable and configure the Spanning Tree.

The following information is displayed in the Spanning Tree table:

• Bridge ID — a unique identifier for the switch in the Spanning Tree. The ID is calculated using the defined Spanning Tree priority of the switch and its MAC address. The lower the Bridge ID, the more likely the switch will act as the root.
• Max Age — the maximum time (in seconds) the switch can wait without receiving a configuration message before attempting to reconfigure.
• Hello Time — the time interval (in seconds) at which the root device transmits a configuration message.
• Forward Delay — the maximum time (in seconds) the root device will wait before changing states (i.e., listening to learning to forwarding).
• Designated Root — the priority and MAC address of the device in the Spanning Tree that the switch has accepted as the root device.
• Root Port — the number of the port on the switch that is closest to the root. The switch communicates with the root device through this port. If there is no root port, then the switch has been accepted as the root device of the Spanning Tree network.
• Root Path Cost — the path cost from the root port on the switch to the root device.
• Configuration Changes — the number of times the Spanning Tree has been reconfigured.
• Last Topology Change — the time since the Spanning Tree was last reconfigured.

The following options are available in the Attribute table:

• Spanning Tree State — enables or disables the Spanning Tree. If you enable the Spanning Tree, you must complete the other fields.
• Priority — sets the priority setting among other switches in the Spanning Tree. (Range: 0 - 65535)
• Hello Time — sets the interval between configuration messages sent by the Spanning Tree Protocol. (Range: 1 - 10 seconds)
  The maximum value is the lower of 10 or [(Maximum Age / 2) -1].
• Maximum Age — sets the amount of time before the system discards a configuration message. (Range: 6-40 seconds)
  The minimum value is the higher of 6 or [2 x (Hello Time + 1)].
  The maximum value is the lower of 40 or [2 x (Forward Delay - 1)].
• Forward Delay — sets the amount of time the system spends in learning and listening states. (Range: 4 - 30 seconds)
  The minimum value is the higher of 4 or [(Maximum Age / 2) + 1].

To save any changes you make in this page for the current session, click Apply Changes. To reset these fields to their current value, click Refresh.

CLI Commands

The following is a summary of the equivalent CLI commands for items in the Spanning Tree/Bridge Settings web page.

Example

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