7.6.1.0 - Force10 Networks

The following command configures the port cost of the interface:
Command Syntax Command Mode Usage
spanning-tree pvst vlan
vlan-range cost number
To change the port cost of an interface, use the following command in the INTERFACE mode, as shown
below:
Figure 258 Configuring PVST+ Port Cost
Configuring Port Priority
Port priority determines the likelihood that the port will be selected to transmit traffic.
The following command configures the priority of the interface:
INTERFACE (OPTIONAL) Enter the keyword cost followed by the
port cost value.
Range: 1 to 200000
Defaults:
100 Mb/s Ethernet interface = 200000
1-Gigabit Ethernet interface = 20000
10-Gigabit Ethernet interface = 2000
Port Channel interface with 100 Mb/s Ethernet =
200000
Port Channel interface with 1-Gigabit Ethernet = 20000
Port Channel interface with 10-Gigabit Ethernet = 2000
Port Channel with 2 1-Gigabit Ethernet = 18000
Port Channel with 2 10-Gigabit Ethernet = 1800
Port Channel with 2 100-Mbps Ethernet = 180000
Force10#conf
Force10(conf)#interface gigabitethernet 1/1
Force10(conf-if-gi-1/1)#spanning-tree pvst vlan 3 cost 18000
Command Syntax Command Mode Usage
spanning-tree pvst vlan
vlan-range priority value
conf-pvst (OPTIONAL) Enter the keyword priority followed the
Port priority value in increments of 16.
Range: 0 to 240
Default: 128
350 PVST+