Interlogix NS3550-8T-2S User Manual User Manual
Page 124

User’s Manual of NS3550-8T-2S
124
port and ensures that the BPDU is discarded
when its age exceeds the value of the
maximum age timer.
Forward Delay 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.
15 seconds
The following are the user-configurable STP parameters for the port or port group level:
Variable
Description
Default Value
Port Priority
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
128
Port Cost
A value used by STP to evaluate paths –
STP calculates path costs and selects the
path with the minimum cost as the active
path
200,000-100Mbps Fast Ethernet ports
20,000-1000Mbps Gigabit Ethernet
ports
0 - Auto
Default Spanning-Tree Configuration
Feature
Default Value
Enable state
STP disabled for all ports
Port priority
128
Port cost
0
Bridge Priority
32,768