hello-timeSet the time interval between the generation of the RSTP bridge protocol data units (BPDUs).S4810Syntax hello-time [milli-second] secondsTo return to the default value, use the no hello-time command.Parameters seconds Enter a number as the time interval between transmission ofBPDUs. The range is from 1 to 10 seconds. The default is 2seconds.milli-second Enter the keywords milli-second to configure a hello timeon the order of milliseconds. The range is from 50 to 950millisecondsDefaults 2 secondsCommandModesCONFIGURATION RSTP (conf-rstp)CommandHistoryThis 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.Version8.3.19.0Introduced 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.UsageInformationThe hello time is encoded in BPDUs in increments of 1/256ths of a second. Thestandard minimum hello time in seconds is 1 second, which is encoded as 256.Millisecond hello times are encoded using values less than 256; the millisecondhello time equals (x/1000)*256.When you configure millisecond hellos, the default hello interval of 2 seconds isstill used for edge ports; the millisecond hello interval is not used.Rapid Spanning Tree Protocol (RSTP) 1429
