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DES-3500 Series Layer 2 Stackable Fast Ethernet Managed Switch User Manual
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MSTP Port Information
STP can be set up on a port per port basis. To view the following window click Configuration > Spanning Tree > MSTP Port
Information:
Figure 6- 34. 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.
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