Allied Telesis AlliedWare Plus Operating System Version 5.4.4C (x310-26FT,x310-26FP,x310-50FT,x310-50FP) - Manual (Page 535)

Spanning Tree Commands
Software Reference for x310 Series Switches
C613-50046-01 REV A AlliedWare Plus TM Operating System - Version 5.4.4C 19.45
spanning-tree hello-time
Use this command to set the hello-time. This sets the time in seconds between the
transmission of switch spanning tree configuration information when the switch is the
Root Bridge of the spanning tree or is trying to become the Root Bridge.
Use this command for RSTP, STP or MSTP.
Use the no variant of this command to restore the default of the hello time.
Syntax spanning-tree hello-time <hello-time>
no spanning-tree hello-time
Default Default is 2 seconds.
Mode Global Configuration and Interface Configuration for switch ports.
Usage The allowable range of values is 1-10 seconds.
The forward delay, max-age, and hello time parameters should be set according to the
following formula, as specified in IEEE Standard 802.1d:
2 x (forward delay - 1.0 seconds) >= max-age
max-age >= 2 x (hello time + 1.0 seconds)
Example
Related Commands spanning-tree forward-time
spanning-tree max-age
show spanning-tree
Parameter Description
<hello-time> <1-10> The hello BPDU interval in seconds.
awplus# configure terminal
awplus(config)# spanning-tree hello-time 3