Connectivity Guide

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 port
Sets the port type as the EdgePort.
Syntax
spanning-tree port type edge
Parameters None
Default Not configured
Command Mode INTERFACE
Usage
Information
When you configure an EdgePort on a device running STP, the port immediately transitions to the
Forwarding state. Only configured ports connected to end hosts act as EdgePorts.
Example
OS10(config)# spanning-tree port type edge
Supported
Releases
10.2.0E or later
spanning-tree vlan cost
Sets the path cost of the interface per VLAN for PVST calculations.
Syntax
spanning-tree vlan vlan-id cost {value}
Parameters value — Enter a port cost value to set the path cost of the interface for PVST calculations, from 1 to
200000000.
Defaults
● 100- Mb/s Ethernet interface = 200000
● 1 Gigabit Ethernet interface = 20000
● 10-Gigabit Ethernet interface = 2000
● Port–channel interface with one 100 Mb/s Ethernet = 200000
● Port-channel interface with one 1 Gigabit Ethernet = 20000
● Port-channel interface with one 10 Gigabit Ethernet = 2000
● Port-channel with two 1 Gigabit Ethernet = 18000
● Port-channel with two 10 Gigabit Ethernet = 1800
● Port-channel with two 100 Mbps Ethernet = 180000
Command Mode INTERFACE
Usage
Information
The media speed of a LAN interface determines the STP port path cost default value.
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