Dell Force10 E1200i FTOS Version 8.4.1.5 Configuration Guide for ExaScale - Page 990
Regarding bpduguard shutdown-on-violation behavior
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www.dell.com | support.dell.com Note: Note that unless the shutdown-on-violation option is enabled, spanning-tree only drops packets after a BPDU violation; the physical interface remains up, as shown below. FTOS(conf-if-gi-0/7)#do show spanning-tree rstp brief Executing IEEE compatible Spanning Tree Protocol Root ID Priority 32768, Address 0001.e805.fb07 Root Bridge hello time 2, max age 20, forward delay 15 Bridge ID Priority 32768, Address 0001.e85d.0e90 Configured hello time 2, max age 20, forward delay 15 Interface Designated Name PortID Prio Cost Sts Cost Bridge ID PortID Gi 0/6 128.263 128 20000 FWD 20000 32768 0001.e805.fb07 128.653 Gi 0/7 128.264 128 20000 EDS 20000 32768 0001.e85d.0e90 128.264 Interface Name Role PortID Prio Cost Sts Cost Link-type Edge Gi 0/6 Root 128.263 128 20000 FWD 20000 P2P No Gi 0/7 ErrDis 128.264 128 20000 EDS 20000 P2P No FTOS(conf-if-gi-0/7)#do show ip int br gi 0/7 Interface IP-Address OK Method Status GigabitEthernet 0/7 unassigned YES Manual up Protocol up FTOS Behavior: Regarding bpduguard shutdown-on-violation behavior: 1 If the interface to be shutdown is a port channel then all the member ports are disabled in the hardware. 2 When a physical port is added to a port channel already in error disable state, the new member port will also be disabled in the hardware. 3 When a physical port is removed from a port channel in error disable state, the error disabled state is cleared on this physical port (the physical port will be enabled in the hardware). 4 The reset linecard command does not clear the error disabled state of the port or the hardware disabled state. The interface continues to be disables in the hardware. The error disabled state can be cleared with any of the following methods: •Perform an shutdown command on the interface. •Disable the shutdown-on-violation command on the interface ( no spanning-tree stp-id portfast [bpduguard | [shutdown-on-violation]] ). •Disable spanning tree on the interface (no spanning-tree in INTERFACE mode). •Disabling global spanning tree (no spanning-tree in CONFIGURATION mode). 990 | Spanning Tree Protocol
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