Users Guide

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.
max-age
To maintain configuration information before refreshing that information, set the time interval for the RSTP
bridge.
Syntax
max-age seconds
To return to the default values, use the no max-age command.
Parameters
max-age Enter a number of seconds the Dell Networking OS waits before
refreshing configuration information. The range is from 6 to 40
seconds. The default is 20 seconds.
Defaults 20 seconds
Command Modes CONFIGURATION RSTP (conf-rstp)
Command History
This guide is platform-specific. For command information about other platforms, see
the relevant Dell Networking OS Command Line Reference Guide.
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.8(1.0) Introduced on the Z9100-ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
Rapid Spanning Tree Protocol (RSTP) 1705