Waters Network Systems GSM2109/GSM1009-SFP User’s Manual Page 29
The following table lists the Spanning Tree Commands.
Command Level
Description
Example
spanning-tree
enable
G
Enable spanning tree
switch(config)#spanning-
tree enable
spanning-tree
priority
[0~61440]
G
Configure spanning tree
priority parameter
switch(config)#spanning-
tree priority 32767
spanning-tree
max-age
[seconds]
G
Use the spanning-tree
max-age global
configuration command to
change the interval between
messages the spanning tree
receives from the root
switch. If a switch does not
receive a bridge protocol
data unit (BPDU) message
from the root switch within
this interval, it will
recompute the Spanning
Tree Protocol (STP)
topology.
switch(config)#
spanning-tree max-age 15
spanning-tree
hello-time
[seconds]
G
Use the spanning-tree
hello-time global
configuration command to
specify the interval between
hello bridge protocol data
units (BPDUs).
switch(config)#spanning-
tree hello-time 3
spanning-tree
forward-time
[seconds]
G
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
learning states last before
the port begins forwarding.
switch(config)#
spanning-tree forward-time
20
stp-path-cost
[1~200000000]
I
Use the spanning-tree cost
interface configuration
command to set the path
cost for Spanning Tree
Protocol (STP) calculations.
switch(config)#interface
fastEthernet 2
switch(config-if)#stp-path-
cost 20