Users Guide
Version Description
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
8.2.1.0 Introduced.
Usage Information
Some non-Dell EMC Networking systems which have hybrid ports participating in PVST+ transmit two kinds of
BPDUs: an 802.1D BPDU and an untagged PVST+ BPDU.
Dell EMC Networking systems do not expect PVST+ BPDU on an untagged port. If this happens, Dell EMC
Networking OS places the port in the Error-Disable state. This behavior might result in the network not converging.
To prevent Dell EMC 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+ conguration.
tc-ush-standard
Enable the MAC address ushing after receiving every topology change notication.
S4048
Syntax
tc-flush-standard
To disable, use the no tc-flush-standard command.
Defaults Disabled.
Command Modes CONFIGURATION
Command History
This guide is platform-specic. For command information about other platforms, see the relevant Dell EMC
Networking OS Command Line Reference Guide.
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.10(0.0) Introduced on the S3148.
9.10(0.0) Introduced on the S6100-ON.
9.8(1.0) Introduced on the Z9100-ON.
9.8(0.0) Introduced on the S3048-ON and S4048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.2(1.0) Introduced on the Z9500.
Per-VLAN Spanning Tree Plus (PVST+) 1455