D-Link DIS-200G-12PS [54/88] Dis 200g series industrial gigabit ethernet smart managed switch

DIS-200G Series Industrial Gigabit Ethernet Smart Managed Switch

Edge Port

The edge port is a configurable designation used for a port that is directly connected to a segment where

a loop cannot be created. An example would be a port connected directly to a single work- station. Ports

that are designated as edge ports transition to a forwarding state immediately without going through the

listening and learning states. An edge port loses its status if it receives a BPDU packet, immediately

becoming a normal spanning tree port.

802.1D-1998/802.1D-2004/802.1Q-2005 Compatibility

MSTP or RSTP can interoperate with legacy equipment and is capable of automatically adjusting BPDU

packets to 802.1D-1998 format when necessary. However, any segment using 802.1D-1998 STP will not

benefit from the rapid transition and rapid topology change detection of MSTP or RSTP. The protocol also

provides for a variable used for migration in the event that legacy equipment on a segment is updated to

use RSTP or MSTP.

The Spanning Tree Protocol (STP) operates on two levels:

1. On the switch level, the settings are globally implemented.

2. On the port level, the settings are implemented on a per-user-defined group of ports basis.