Connectivity Guide
spanning-tree rstp hello-time
Sets the time interval between generation and transmission of RSTP BPDUs.
Syntax
spanning-tree rstp hello-time seconds
Parameters seconds — Enter a hello-time interval value in seconds, from 1 to 10.
Default 2 seconds
Command Mode CONFIGURATION
Usage Information Dell EMC recommends increasing the hello-time for large congurations, especially congurations with multiple
ports.
Example
OS10(config)# spanning-tree rstp hello-time 5
Supported Releases 10.2.0E or later
spanning-tree rstp mac-ush-threshold
Sets the ush indication threshold value on the RSTP instance.
Syntax
spanning-tree rstp mac-flush-threshold threshold-value
Parameters threshold-value—Enter the threshold value for the number of ushes, from 0 to 65535. The default value is
65535.
Default Not congured
Command Mode CONFIGURATION
Usage Information The threshold value indicates the number of ush indications to go before the ush interval timer is triggered.
When ush indication threshold is set to the default value and the ush interval is set to a non-default value,
ushing occurs during the rst ush indication trigger. When the ush indication threshold value is non-default (n)
and ush interval value is non-default, port-based ushing is triggered until the threshold (n) is reached. Once the
threshold is reached, MAC ush timer starts. On timer expiry, the system triggers instance-based ushing. When
the timer is running, all port-and-instance-based ushing is suppressed. The no form of the command sets the
ush indication threshold to its default value.
Example
OS10(config)# spanning-tree rstp mac-flush-threshold 255
Supported Releases 10.4.0E(R1) or later
spanning-tree rstp max-age
Congures the time period the bridge maintains conguration information before refreshing the information by recomputing the RSTP
topology.
Syntax
max-age seconds
Parameters seconds — Enter a maximum age value in seconds, from 6 to 40.
Default 20 seconds
Command Mode CONFIGURATION
Usage Information None
366 Layer 2