Dell S3100 EMC Command Line Reference Guide for the Series 9.14.2.1 - Page 1406

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 errdisable command cause invalid-pvst-bpdu. Related Commands • show spanning-tree pvst - views the PVST+ configuration. tc-flush-standard Enable the MAC address flushing after receiving every topology change notification. Syntax tc-flush-standard To disable, use the no tc-flush-standard command. Defaults Command Modes Command History Disabled. CONFIGURATION This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC Networking OS Command Line Reference Guide. Version 9.10(0.1) 9.10(0.0) 9.10(0.0) 9.8(1.0) 9.8(0.0) 9.7(0.0) 9.2(1.0) 9.0.2.0 8.3.19.0 8.3.11.1 8.3.7.0 7.6.1.0 7.5.1.0 6.5.1.0 Description Introduced on the S6010-ON and S4048T-ON. Introduced on the S3148. Introduced on the S6100-ON. Introduced on the Z9100-ON. Introduced on the S3048-ON and S4048-ON. Introduced on the S6000-ON. Introduced on the Z9500. Introduced on the S6000. Introduced on the S4820T. Introduced on the Z9000. Introduced on the S4810. Introduced on the S-Series. Introduced on the C-Series. Introduced. Usage Information By default, Dell EMC Networking OS implements an optimized flush mechanism for PVST+. This implementation helps in flushing the MAC addresses only when necessary (and less often) allowing for faster convergence during topology changes. However, if a standards-based flush mechanism is needed, you can turn this knob command on to enable flushing MAC addresses after receiving every topology change notification. 1406 Per-VLAN Spanning Tree Plus (PVST+)