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The following are the user-configurable STP parameters for the port or port group
level:
PARAMETER
DESCRIPTION
A relative priority for each switch - lower numbers give a
Port Priority
higher priority and a greater chance of a given switch being
elected as the root bridge.
A value used by STP to evaluate paths - STP calculates path
Port Cost
costs and selects the path with the minimum cost as the
active path.
Default Spanning-Tree Configuration
Feature
Enable state
Port priority
Port cost
Bridge Priority
NOTE:
The Hello Time cannot be longer than the Max. Age. Otherwise, a configuration
error will occur.
Observe the following formulas when setting the above parameters:
• Max. Age _ 2 x (Forward Delay - 1 second)
• Max. Age _ 2 x (Hello Time + 1 second)
RSTP System Configuration
This section provides RSTP-System Configuration from the Switch, the screen in
Figure 61 appears.
• The user can view spanning tree information of Root Bridge.
• The user can modify RSTP state. After modification, click the Apply button.
GE-DS-82 and 82-PoE Ethernet Managed Switch User Manual
Chapter 4: Web-Based Management
Default Value
STP disabled for all ports
128
0
32,768
DEFAULT VALUE
128
200,000-100Mbps
Fast Ethernet ports
20,000-1000Mbps
Gigabit Ethernet ports
0 - Auto
89
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