Specifications

9033691-01 VH-2402-L3 Management Guide 119
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
Table 2-1. STP Parameters – Switch Level
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.
19 – 100Mbps
Fast Ethernet
ports
10 – 1000Mbps
Gigabit
Ethernet ports
Table 2-2. STP Parameters – Port Group Level
Bridge Protocol Data Units
For STP to arrive at a stable network topology, the following
information is used:
• The unique switch identifier
• The path cost to the root associated with each switch port
• The port identifier