Users Guide

ethernet1/1/10 128.296 128 200000000 FWD 0 32769 0000.0000.0000 128.296
ethernet1/1/11 128.300 128 200000000 FWD 0 32769 0000.0000.0000 128.300
ethernet1/1/12 128.304 128 200000000 FWD 0 32769 0000.0000.0000 128.304
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.
Example
OS10(conf-if-eth1/1/4)# spanning-tree vlan 10 cost 1000
Supported
Releases
10.2.0E or later
spanning-tree vlan disable
Disables spanning tree on a specified VLAN.
Syntax
spanning-tree vlan vlan-id disable
Parameters vlan-id — Enter the VLAN ID number, from 1 to 4093.
Default Enabled
Command Mode CONFIGURATION
Usage Information The no version of this command enables spanning tree on the specified VLAN.
Example
OS10(config)# spanning-tree vlan 100 disable
Supported
Releases
10.4.0E(R1) or later
spanning-tree vlan 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 vlan vlan-id forward-time seconds
Parameters
• vlan-id— Enter a VLAN ID number, from 1 to 4093.
• seconds — Enter the forward-delay time in seconds, from 4 to 30.
Default 15 seconds
Command Mode CONFIGURATION
434 Layer 2