disable
Disable PVST+ globally.
C-Series, E-Series, S-Series, Z-Series, S4810
Syntax
disable
To enable PVST+, use the no disable command.
Defaults Disabled.
Command Modes CONFIGURATION (conf-pvst)
Command History
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.0 Introduced on the S4810.
Version 7.6.1.0 Introduced on the S-Series.
Version 7.5.1.0 Introduced on the C-Series.
pre-Version
6.2.1.1
Introduced on the E-Series.
Related
Commands
protocol spanning-tree pvst – enter PVST+ mode.
extend system-id
Use extend system ID to augment the Bridge ID with a VLAN ID so that PVST+ differentiate between BPDUs for each
VLAN. If for some reason on VLAN receives a BPDU meant for another VLAN, PVST+ will then not detect a loop, and
both ports can remain in forwarding state.
C-Series, E-Series, S-Series, Z-Series, S4810
Syntax
extend system-id
Defaults Disabled
Command Modes PROTOCOL PVST
Command History
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.0 Introduced on the S4810.
Version 8.3.1.0 Introduced.
Example
FTOS(conf-pvst)#do show spanning-tree pvst vlan 5 brief
VLAN 5
Executing IEEE compatible Spanning Tree Protocol
Root ID Priority 32773, Address 0001.e832.73f7
Root Bridge hello time 2, max age 20, forward delay 15
1168
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