Related
Commands
hello-time
— changes the time interval between BPDUs.
max-age
— changes the wait time before RSTP refreshes the protocol
configuration information.
hello-time
Set the time interval between the generation of the RSTP bridge protocol data units (BPDUs).
Syntax
hello-time [milli-second]
seconds
To return to the default value, use the
no hello-time
command.
Parameters
seconds
Enter a number as the time interval between transmission of
BPDUs. The range is from 1 to 10 seconds. The default is
2
seconds
.
milli-second
Enter the keywords
milli-second
to configure a hello time
on the order of milliseconds. The range is from 50 to 950
milliseconds
Defaults
2 seconds
Command
Modes
CONFIGURATION RSTP (conf-rstp)
Command
History
Version 8.3.16.1
Introduced on the MXL 10/40GbE Switch IO Module.
Usage
Information
The hello time is encoded in BPDUs in increments of 1/256ths of a second. The
standard minimum hello time in seconds is 1 second, which is encoded as 256.
Millisecond hello times are encoded using values less than 256; the millisecond
hello time equals (x/1000)*256.
When you configure millisecond hellos, the default hello interval of 2 seconds is
still used for edge ports; the millisecond hello interval is not used.
Related
Commands
forward-delay
— changes the wait time before RSTP transitions to the Forwarding
state.
max-age
— changes the wait time before RSTP refreshes the protocol
configuration information.
Rapid Spanning Tree Protocol (RSTP)
1145