Dell C1048P Port Extender Networking Command-Line Reference Guide for the C900 - Page 1650

Command History This guide is platform-specific. For command information about other platforms, refer to the relevant Dell Networking OS Command Line Reference Guide. The following is a list of the Dell Networking OS version history for this command. Version 9.9(0.0) 9.2(1.0) 8.3.19.0 8.3.11.1 8.3.7.0 8.2.1.0 Description Introduced on the C9010. Introduced on the Z9500. Introduced on the S4820T. Introduced on the Z9000. Introduced on the S4810. Introduced. 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, the system places the port in the Error-Disable state. This behavior might result in the network not converging. To prevent the system from executing this action, use the no spanning-tree pvst err-disable command cause invalid-pvstbpdu. Related Commands show spanning-tree pvst - views the PVST+ configuration. tc-flush-standard Enable the MAC address flushing after receiving every topology change notification. C9000 Series Syntax tc-flush-standard To disable, use the no tc-flush-standard command. Defaults Disabled. Command Modes CONFIGURATION Command History This guide is platform-specific. For command information about other platforms, refer to the relevant Dell Networking OS Command Line Reference Guide. Per-VLAN Spanning Tree Plus (PVST+) 1650