Dell C1048P Port Extender Networking Command-Line Reference Guide for the C900 - Page 1377
spanning-tree pvst err-disable
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Related Commands no ip address switchport spanning-tree pvst vlan 3 cost 18000 no shutdown Dell(conf-if-te-1/1)#end 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. C9000 Series 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 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-pvst-bpdu. Related Commands show spanning-tree pvst - views the PVST+ configuration. Per-VLAN Spanning Tree Plus (PVST+) 1377
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