Allied Telesis AT-S63 - Manual (Page 251)

AT-S63 Stack Command Line Interface User’s Guide
Section III: Spanning Tree Protocols 251
hellotime Specifies the time interval between generating and
sending configuration messages by the bridge. This
parameter can be from 1 to 10 seconds. The default is 2
seconds.
forwarddelay Specifies the waiting period before a bridge changes to
a new state, for example, becomes the new root bridge
after the topology changes. If the bridge transitions too
soon, not all links may have yet adapted to the change,
resulting in network loops. The range is 4 to 30
seconds. The default is 15 seconds. This parameter
effects only those ports operating in the STP compatible
mode.
maxage Specifies the length of time, in seconds, after which
stored bridge protocol data units (BPDUs) are deleted
by the bridge. All bridges in a bridged LAN use this
aging time to test the age of stored configuration
messages called bridge protocol data units (BPDUs).
For example, if you use the default value of 20, all
bridges delete current configuration messages after 20
seconds. The range of this parameter is 6 to 40
seconds. The default is 20 seconds.
Note
The value for the maxage parameter must be greater than
(2 x (hellotime +1)) and less than (2 x (forwarddelay -1)).
rstptype or Sets the RSTP mode. The parameters are
forceversion equivalent. The options are:
stpcompatible or The bridge uses the RSTP
forcestpcompatible parameter settings, but transmits
only STP BPDU packets from the
ports. These options are
equivalent.
normalrspt The bridge uses RSTP. It
transmits RSTP BPDU packets,
except on ports connected to
bridges running STP. This is the
default setting.
Description
This command configures the following RSTP parameter settings.
ˆ Bridge priority
ˆ Hello time