Hello-Time - Dell S4810 Reference Manual

hello-time

Set the time interval between the generation of the RSTP bridge protocol data units (BPDUs).
S4810
Syntax
hello-time [milli-second] seconds
To return to the default value, use the no hello-time command.
Parameters
seconds
milli-second
Defaults 2 seconds
Command CONFIGURATION RSTP (conf-rstp)
Modes
Command
This guide is platform-specific. For command information about other platforms,
History
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
Version
8.3.19.0
Version 8.3.11.1
Version 8.3.7.0
Version 8.3.1.0
Version 7.6.1.0
Version 7.5.1.0
Version 6.2.1.1
Usage
The hello time is encoded in BPDUs in increments of 1/256ths of a second. The
Information
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.
Rapid Spanning Tree Protocol (RSTP)
Enter a number as the time interval between transmission of
BPDUs. The range is from 1 to 10 seconds. The default is 2
seconds.
Enter the keywords milli-second to configure a hello time
on the order of milliseconds. The range is from 50 to 950
milliseconds
Introduced on the S6000.
Introduced on the S4820T.
Introduced on the Z9000.
Introduced on the S4810.
Added the milli-second option to the S-Series.
Introduced on the S-Series.
Introduced on the C-Series.
Introduced on the E-Series.
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