Administrator Guide

hello-time
Set the time interval between the generation of the RSTP bridge protocol data units (BPDUs).
Z9000
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
This guide is platform-specific. For command information about other platforms,
refer to the relevant Dell Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version 9.0.2.0 Introduced on the S6000.
Version
8.3.19.0
Introduced on the S4820T.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.0 Introduced on the S4810.
Version 8.3.1.0 Added the milli-second option to the S-Series.
Version 7.6.1.0 Introduced on the S-Series.
Version 7.5.1.0 Introduced on the C-Series.
Version 6.2.1.1 Introduced on the E-Series.
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.
1328
Rapid Spanning Tree Protocol (RSTP)