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19 Spanning Tree Protocol
19.4 PVST+ configuration
19.4.1 List of configuration commands
The following table describes the commands used to configure PVST+.
Table 19-9 List of configuration commands
Command name
spanning-tree cost
spanning-tree pathcost method
spanning-tree port-priority
spanning-tree vlan
spanning-tree vlan cost
spanning-tree vlan forward-time
spanning-tree vlan hello-time
spanning-tree vlan max-age
spanning-tree vlan pathcost method
spanning-tree vlan port-priority
spanning-tree vlan priority
spanning-tree vlan transmission-limit
19.4.2 Configuring PVST+
Points to note
When the
port VLANs, but the mode can be changed and PVST+ can be set to be started or
stopped per VLAN. The
stop operation.
To prevent PVST+ operation on a newly created VLAN, use the
vlan
Command examples
1.
(config)# no spanning-tree vlan 20
Stops VLAN 20 PVST+ operation.
2.
(config)# spanning-tree vlan 20
Runs the stopped VLAN 20 PVST+.
310
pvst
or
rapid-pvst
no spanning-tree vlan
configuration command to set this before the VLAN is created.
Description
Sets the path cost for a port.
Sets the margin of values used for path costs for a port.
Sets the port priority for each port.
Sets PVST+ starting and stopping operation.
Sets the path cost value for a VLAN.
Sets the time required for port status transitions.
Sets the sending interval for BPDUs.
Sets the maximum enabled time for sent BPDUs.
Sets the margin of values used for path costs for a VLAN.
Sets the port priority for a VLAN.
Sets the bridge priority.
Sets the maximum number of BPDUs that can be sent per
hello-time
interval.
operating mode is set, PVST+ automatically runs on
configuration command is used to
no spanning-tree
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