Users Guide

Usage Information The no version of this command enables spanning tree on the specified MST instance.
Example
OS10(config)# spanning-tree mst 10 disable
Supported
Releases
10.4.0E(R1) or later
spanning-tree mst force-version
Configures a forced version of STP to transmit BPDUs.
Syntax
spanning-tree mst force-version {stp | rstp}
Parameters
• stp — Forces the version for the BPDUs transmitted by MST to STP.
• rstp — Forces the version for the BPDUs transmitted by MST to RSTP.
Default Not configured
Command Mode CONFIGURATION
Usage Information Forces a bridge that supports MST to operate in a STP-compatible mode.
Example
OS10(config)# spanning-tree mst force-version
Supported
Releases
10.2.0E or later
spanning-tree mst forward-time
Configures a time interval for the interface to wait in the Blocking state or the Learning state before moving to the Forwarding state.
Syntax
spanning-tree mst forward-time seconds
Parameters seconds — Enter the number of seconds an interface waits in the Blocking or Learning States before moving to
the Forwarding state, from 4 to 30.
Default 15 seconds
Command Mode CONFIGURATION
Usage Information The no version of this command resets the value to the default.
Example
OS10(config)# spanning-tree mst forward-time 16
Supported
Releases
10.2.0E or later
spanning-tree mst hello-time
Sets the time interval between generation and transmission of MSTP BPDUs.
Syntax
spanning-tree mst 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 configurations, especially configurations with multiple
ports. The no version of this command resets the value to the default.
Example
OS10(config)# spanning-tree mst hello-time 5
Supported
Releases
10.2.0E or later
452 Layer 2