Reference Guide

● rstp — Forces the version for the BPDUs transmitted by RPVST+ to RSTP
Default Not configured
Command Mode CONFIGURATION
Usage
Information
Forces a bridge that supports RPVST+ to operate in a STP-compatible mode.
Example
OS10(config)# spanning-tree mst force-version
Supported
Releases
10.2.0E or later
spanning-tree vlan hello-time
Sets the time interval between generation and transmission of RPVST BPDUs.
Syntax
spanning-tree vlan vlan-id hello-time seconds
Parameters
● vlan-id — Enter the VLAN ID number (1 to 4093).
● seconds — Enter a hello-time interval value in seconds (1 to 10).
Default 2 seconds
Command Mode CONFIGURATION
Usage
Information
Dell EMC recommends increasing the hello-time for large configurations — especially configurations with
multiple ports.
Example
OS10(config)# spanning-tree vlan 10 hello-time 5
Supported
Releases
10.2.0E or later
spanning-tree vlan mac-flush-threshold
Sets the threshold value to flush MAC addresses on specified VLAN.
Syntax
spanning-tree vlan vlan-id mac-flush-threshold threshold-value
Parameters
● vlan-id — Enter the VLAN ID number, ranging from 1 to 4093.
● threshold-value—Enter the threshold value for the number of flushes, ranging from 0 to 65535.
The default value is 0.
Default Not configured
Command Mode CONFIGURATION
Usage
Information
The no version of this command removes the threshold value.
Example
OS10(config)# spanning-tree vlan 100 mac-flush-threshold 255
Supported
Releases
10.4.0E(R1) or later
spanning-tree vlan max-age
Configures the time period the bridge maintains configuration information before refreshing the information by recomputing
RPVST.
Syntax
spanning-tree vlan vlan-id max-age seconds
222 Layer 2