24-Port Fast Ethernet Switch Management Guide

C ONFIGURING THE S WITCH
3-168
likely to be blocked if the Spanning Tree Algorithm is detecting network
loops. Where more than one port is assigned the highest priority, the port
with lowest numeric identifier will be enabled.
• Designated root – The priority and MAC address of the device in the
Spanning Tree that this switch has accepted as the root device.
• Fast forwarding – This field provides the same as Admin Edge port, and
is only included for backward compatibility with earlier products.
• Admin edge port – You can enable this option if an interface is attached
to a LAN segment that is at the end of a bridged LAN or to an end node.
Since end nodes cannot cause forwarding loops, they can pass directly
through to the spanning tree forwarding state. Specifying Edge Ports
provides quicker convergence for devices such as workstations or
servers, retains the current forwarding database to reduce the amount of
frame flooding required to rebuild address tables during reconfiguration
events, does not cause the spanning tree to initiate reconfiguration when
the interface changes state, and also overcomes other STA-related
timeout problems. However, remember that Edge Port should only be
enabled for ports connected to an end-node device.
• Admin Link Type – The link type attached to this interface.
- Point-to-Point – A connection to exactly one other bridge.
- Shared – A connection to two or more bridges.
- Auto – The switch automatically determines if the interface is attached
to a point-to-point link or to shared media.
Web – Click Spanning Tree, STA Port Information or STA Trunk
Information.
Figure 3-71 STA Port Information