Dell PowerEdge M520 Dell PowerConnect M6220/M6348/M8024/M8024-k CLI Referen - Page 678
Commands in this STP BPDU flooding feature applies to the STP
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port. In this way, the root guard enforces the position of the root bridge. In MSTP scenario the port may be designated in one of the instances while being alternate in the CIST, and so on. Root guard is a per port (not a per port per instance command) configuration so all the MSTP instances this port participates in should not be in root role. STP BPDU Filtering - STP BPDU filtering applies to all operational edge ports. Edge Port in an operational state is supposed to be connected to hosts that typically drop BPDUs. If an operational edge port receives a BPDU, it immediately loses its operational status. In that case, if BPDU filtering is enabled on this port then it drops the BPDUs received on this port. STP BPDU Flooding - STP BPDU flooding feature applies to the STP disabled switch. To enable BPDU flooding on a port, STP should be disabled on the switch administratively. When this feature is enabled on the switch, it floods all the ports with the BPDU flood feature enabled on it. Commands in this Chapter This chapter explains the following commands: clear spanning-tree spanning-tree detected-protocols auto-portfast spanning-tree max- spanning-tree portfast age bpdufilter default exit (mst) spanning-tree bpdu spanning-tree max- spanning-tree portfast flooding hops default instance (mst) spanning-tree spanning-tree bpdu-protection mode spanning-tree portpriority name (mst) spanning-tree cost spanning-tree mst spanning-tree priority configuration revision (mst) spanning-tree disable spanning-tree mst spanning-tree tcnguard cost show spanning-tree spanning-tree forward-time spanning-tree mst spanning-tree transmit port-priority hold-count show spanning-tree spanning-tree summary guard spanning-tree mst priority spanning-tree spanning-tree loopguard spanning-tree portfast 678 Spanning Tree Commands
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