Stp Parameters - Planet VC-820M User Manual

4.8.3 STP Parameters

STP Operation Levels
The Switch allows for two levels of operation: the switch level and the port level. The switch level forms a spanning tree
consisting of links between one or more switches. The port level constructs a spanning tree consisting of groups of one or
more ports. The STP operates in much the same way for both levels.
On the switch level, STP calculates the Bridge Identifier for each switch and then sets the Root
Bridge and the Designated Bridges. On the port level, STP sets the Root Port and the Designated
Ports.
The following are the user-configurable STP parameters for the switch level:
Parameter
Bridge Identifier(Not user
configurable
except by setting priority
below)
Figure 4-8-3: After Applying the STA Rules
Description
A combination of the User-set priority and
the switch's MAC address.
The Bridge Identifier consists of two parts:
a 16-bit priority and a 48-bit Ethernet MAC
address 32768 + MAC.
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User's Manual of VC-820M
Default Value
+
32768 MAC