Reference Guide

Related
Commands
show spanning-tree pvst – views the PVST+ configuration.
spanning-tree pvst err-disable
Place ports in an Err-Disabled state if they receive a PVST+ BPDU when they are members an untagged
VLAN.
S5000
Syntax
spanning-tree pvst err-disable cause invalid-pvst-bpdu
Defaults Enabled; ports are placed in the Err-Disabled state if they receive a PVST+ BPDU
when they are members of an untagged VLAN.
Command
Modes
INTERFACE
Command
History
Version 9.0(1.3) Introduced on the S5000.
Usage
Information
Some non-Dell Networking systems which have hybrid ports participating in PVST+
transmit two kinds of BPDUs: an 802.1D BPDU and an untagged PVST+ BPDU.
Dell Networking systems do not expect PVST+ BPDU on an untagged port. If this
happens, Dell Networking OS places the port in the Error-Disable state. This
behavior might result in the network not converging. To prevent Dell Networking
OS from executing this action, use the no spanning-tree pvst err-disable
command cause invalid-pvst-bpdu.
Related
Commands
show spanning-tree pvst – views the PVST+ configuration.
tc-flush-standard
Enable MAC address flushing after receiving every topology change notification.
S5000
Syntax
tc-flush-standard
To disable, use the no tc-flush-standard command.
Defaults Disabled.
Command
Modes
CONFIGURATION
Per-VLAN Spanning Tree Plus (PVST+)
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