Stp System Configuration - Interlogix GE-DS Series User Manual

Forward Delay Timer
The following are the user-configurable STP parameters for the port or port group level:
Variable
Port Priority
Port Cost
Default Spanning-Tree Configuration
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)

STP System Configuration

This section provides STP-System Configuration from the Managed Switch, the screen in
 The user can view spanning tree information of Root Bridge.
 The user can modify STP state. After modification, click
maximum age timer.
The amount time spent by a port in the
learning and listening states waiting for a
BPDU that may return the port to the
blocking state.
Description
A relative priority for each
port –lower numbers give a higher priority
and a greater chance of a given port being
elected as the root port.
A value used by STP to evaluate paths –
STP calculates path costs and selects the
path with the minimum cost as the active
path.
Feature
Enable state
Port priority
Port cost
Bridge Priority
GE-DS-82 and NS2503-8P/2C Series User Manual
Default Value
128
200,000-100Mbps Fast Ethernet ports
20,000-1000Mbps Gigabit Ethernet ports
0 – Auto
Default Value
STP disabled for all ports
128
0
32,768
Apply
.
86
seconds
15
Figure 4-5-4 appears.