Planet Technology FGSW-2620VM - Manual (Page 44)

FGSW-2620VM User’s Manual
give a higher priority and a greater chance of a
given switch being elected as the root bridge
Hello Time The length of time between broadcasts of the hello
message by the switch
2 seconds
Maximum Age Timer Measures the age of a received BPDU for a port
and ensures that the BPDU is discarded when its
age exceeds the value of the maximum age timer.
20 seconds
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
32768
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
19-100Mbps Fast
Ethernet ports
4-1000Mbps Gigabit
Ethernet ports
Default Spanning-Tree Configuration
Feature Default Value
Enable state STP enabled for all ports
Port priority 128
Port cost 19
Bridge Priority 32,768
User-Changeable STA Parameters
The Switch’s factory default setting should cover the majority of installations. However, it is advisable to keep the default
settings as set at the factory; unless, it is absolutely necessary. The user changeable parameters in the Switch are as
follows:
Priority – A Priority for the switch can be set from 0 to 65535. 0 is equal to the highest Priority.
Hello Time – The Hello Time can be from 1 to 10 seconds. This is the interval between two transmissions of BPDU
packets sent by the Root Bridge to tell all other Switches that it is indeed the Root Bridge. If you set a Hello Time for your
Switch, and it is not the Root Bridge, the set Hello Time will be used if and when your Switch becomes the Root Bridge.
#
Notice:
The Hello Time cannot be longer than the Max. Age. Otherwise, a configuration error will occur.
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