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7.8.1.0 - Force10 Networks

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Disabling PVST+<br />

To disable PVST+ globally in FTOS, simply issue the disable command in PVST+ CONFIGURATION<br />

mode. When PVST+ is disabled, the show spanning-tree pvst command does not return any output.<br />

Figure 406 Disabling PVST+ Globally<br />

<strong>Force10</strong>#conf<br />

<strong>Force10</strong>(conf)#protocol spanning-tree pvst<br />

<strong>Force10</strong>(conf-pvst)#disable<br />

To disable PVST+ on a particular interface, use the no spanning-tree pvst [ edge-port | vlan<br />

vlan-range {cost number | priority value} ] command after entering INTERFACE mode.<br />

Figure 407 Disabling PVST+ on an Interface<br />

<strong>Force10</strong>#conf<br />

<strong>Force10</strong>(conf)#interface gigabitethernet 1/1<br />

<strong>Force10</strong>(conf-if-gi-1/1)#no spanning-tree<br />

Figure 408<br />

The following command disables the port cost or priority of the interface:<br />

Command Syntax Command Mode Usage<br />

no spanning-tree pvst [<br />

edge-port | vlan vlan-range<br />

{cost number | priority value} ]<br />

To disable PVST+ port cost or priority on a particular interface, use the no spanning-tree pvst [vlan<br />

vlan-range {cost number} command after entering INTERFACE mode.<br />

Figure 409 Disabling PVST+ Port Cost on an Interface<br />

<strong>Force10</strong>#conf<br />

<strong>Force10</strong>(conf)#interface gigabitethernet 1/1<br />

<strong>Force10</strong>(conf-if-gi-1/1)#no spanning-tree pvst vlan 3 cost 20000<br />

INTERFACE disable PVST+ edge port, VLAN, port priority,<br />

and port cost on an interface.<br />

614 Per-VLAN Spanning Tree Plus

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