Dell C9000 series, Reference Manual

Page: 1855 / 2286

hello-time
Set the time interval between the generation of the RSTP bridge protocol data units (BPDUs).
C9000 Series
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 Description
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
8.3.1.0 Added the
milli-second
option to the S-Series.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
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.
Rapid Spanning Tree Protocol (RSTP) 1855