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10
SPANNING TREE COMMANDS
The switch supports 802.1d STP and 802.1w Rapid STP. The spanning tree commands in the Command Line Interface (CLI)
are listed (along with the appropriate parameters) in the following table.
Command Parameters
config stp {maxage <value 6-40> | hellotime <value 1-10> | forwarddelay
<value 4-30> | priority <value 0-61440> | version [rstp | stp] |
txholdcount <value 1-10> | fbpdu [enable | disable]}
config stp ports [all | <portlist>] {cost [auto | <value 1-200000000>] | priority <value
0-240>|migrate [yes | no] |edge [true | false]|p2p [true | false | auto]
|state [enable | disable]}
enable stp
disable stp
show stp
show stp ports <portlist>
Each command is listed, in detail, in the following sections.
config stp
Purpose
Used to setup STP and RSTP on the switch.
Syntax
config stp {maxage <value 6-40> | hellotime <value 1-10> |
forwarddelay <value 4-30> | priority <value 0-61440> |
version[rstp | stp] | txholdcount <value 1-10>| fbpdu [enable |
disable]}
Description
This command is used to setup the Spanning Tree Protocol (STP)
for the entire switch.
Parameters
maxage <value>
−
The maximum amount of time (in seconds) that
the switch will wait to receive a BPDU packet before reconfiguring
STP. The user may choose a time between 6 and 40 seconds. The
default is 20 seconds.
hellotime <value>
−
The time interval between transmission of
configuration messages by the root device. The user may choose a
time between 1 and 10 seconds. The default is 2 seconds.
forwarddelay <value> − The maximum amount of time (in seconds)
that the root device will wait before changing states. The user may
choose a time between 4 and 30 seconds. The default is 15
seconds.
priority <value> − A numerical value between 0 and 61440 that is
used in determining the root device, root port, and designated port.
The device with the highest priority becomes the root device. The
lower the numerical value, the higher the priority. The default is
32,768.
version [rstp | stp] - select the Spanning Tree Protocol version used
for the switch.