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data unit (BPDU) message
from the root switch within
this interval, it recomputes
the Spanning Tree Protocol
(STP) topology. Use the no
form of this command to
return to the default interval.
spanning-tree hello-
time
[seconds]
Global
configuration mode
Use the spanning-tree
hello-time global
configuration command to
specify the interval between
hello
bridge protocol data units
(BPDUs). Use the no form of
this command to return to the
default interval.
2 sec.
Switch (config)# spanning-tree
hello-time 3
stp-path-cost [PortCost]
Interface
configuration mode
Use the spanning-tree cost
interface configuration
command to set the path
cost for Spanning Tree
Protocol (STP) calculations.
In the event of a loop,
spanning tree considers the
path cost when selecting an
interface to place into the
forwarding state. Use the no
form of this command to
return to the default value.
10 Mbps
– 100
100 Mbps
– 10
Switch (config)# interface
fastEthernet 0/2
Switch (config-if)#
stp-path-cost 20
spanning-tree
forward-time [seconds]
Global
configuration mode
Use the spanning-tree
forward-time global
configuration command to
set the forwarding-time for
the specified spanning-tree
instances. The forwarding
time determines how long
each of the listening and
15 sec.
Switch (config)# spanning-tree
forward-time 20