Users Guide

spanning-tree mode
Enables an STP type: RSTP, Rapid-PVST+, or MST.
Syntax
spanning-tree mode {rstp | mst | rapid-pvst}
Parameters
• rstp — Sets STP mode to RSTP.
• mst — Sets STP mode to MST.
• rapid-pvst — Sets STP mode to RPVST+.
Default RPVST+
Command Mode CONFIGURATION
Usage Information All STP instances stop in the previous STP mode and restart in the new mode. You can also change to
RSTP/MST mode.
Example (RSTP)
OS10(config)# spanning-tree mode rstp
Example (MST)
OS10(config)# spanning-tree mode mst
Supported
Releases
10.2.0E or later
spanning-tree rstp force-version
Configures a forced version of spanning tree to transmit BPDUs.
Syntax
spanning-tree rstp force-version stp
Parameters stp — Force the version for the BPDUs transmitted by RSTP.
Default Not configured
Command Mode CONFIGURATION
Usage Information Forces a bridge that supports RSTP or MST to operate in an STP-compatible manner to avoid frame mis-ordering
and duplication in known LAN protocols that are sensitive.
Example
OS10(config)# spanning-tree rstp force-version stp
Supported
Releases
10.2.0E or later
spanning-tree rstp forward-time
Configures a time interval for the interface to wait in the Blocking state or Learning state before moving to the Forwarding state.
Syntax
spanning-tree rstp 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 None
Example
OS10(config)# spanning-tree rstp forward-time 16
Supported
Releases
10.2.0E or later
442 Layer 2