Back to Contents Page

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

Trunk Settings

In the Trunk Settings page, you can specify Spanning Tree parameters for each trunk. This page is in table format.

The following STP parameters are displayed for each trunk:

• Type — the type of trunk, indicates one of the following:
  • 1000Base-TX — Port 7 - 10 are 10/100/1000Base-T RJ-45 uplink ports.
    
• State — displays the current state of this port within the Spanning Tree:
  • Disabled — port has been disabled by the user or has failed diagnostics.
  • Blocking — port receives ETA configuration messages, but does not forward packets.
  • Listening — port will leave blocking state due to topology change, starts transmitting configuration messages, but does not yet forward packets.
  • Learning — has transmitted configuration messages for an interval set by the Forward Delay parameter without receiving contradictory information. Port address table is cleared, and the port begins learning addresses.
  • Forwarding — the port forwards packets, and continues learning addresses.
  • Broken — Port is malfunctioning or no link has been established.

The following STP parameters may be edited for each trunk:

• Priority — Priority assigned to this trunk for the Spanning Tree Protocol. A trunk with a higher priority is less likely to be blocked if the Spanning Tree Protocol is detecting network loops. Low numeric value indicates a high priority.
  • Range: 0-255
  • Default: 128
• Cost — Cost assigned to this trunk for the Spanning Tree Protocol. A trunk with a lower cost is less likely to be blocked if the Spanning Tree Protocol is detecting network loops.
  • Full Range: 1-65535
  • Recommended Range –
    • Ethernet: 50-600
    • Fast Ethernet: 10-60
    • Gigabit Ethernet: 3-10
  • Default –
    • Ethernet trunk: 90
    • Fast Ethernet trunk: 15
    • Gigabit Ethernet trunk: 3
• Fast Link — Fast Link immediately enables the trunk in forwarding state when a link comes up. The trunk is not part of the Spanning Tree at that time, but will participate in future Spanning Tree resolutions. (Default: disabled)

NOTE: Fast Link is useful if a device is connected to a trunk that requires network access immediately when the link comes up and cannot wait for Spanning Tree resolution.

CLI Commands

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

Example

 Back to Contents Page