D-Link DES-3528P [67/260] Mstp port information

DES-3550 Fast Ethernet Layer 2 Switch

MSTP Port Information

STP can be set up on a port per port basis. To view the following window click Configuration > Spanning Tree > MST

Port Information:

Figure 6- 28. STP Port Settings window

In addition to setting Spanning Tree parameters for use on the switch level, the Switch allows for the configuration of groups

of ports, each port-group of which will have its own spanning tree, and will require some of its own configuration settings.

An STP Group will use the switch-level parameters entered above, with the addition of Port Priority and Port Cost.

An STP Group spanning tree works in the same way as the switch-level spanning tree, but the root bridge concept is replaced

with a root port concept. A root port is a port of the group that is elected based on port priority and port cost, to be the

connection to the network for the group. Redundant links will be blocked, just as redundant links are blocked on the switch

level.

The STP on the switch level blocks redundant links between switches (and similar network devices). The port level STP will

block redundant links within an STP Group.

It is advisable to define an STP Group to correspond to a VLAN group of ports.

NOTE: If you want to enable Forwarding BPDU on a per port basis, the following

settings must first be in effect: 1. STP must be globally disabled and 2. Forwarding

BPDU must be globally enabled. These are the default settings configurable in the

STP Bridge Global Settings menu discussed previously.