Spanning-Tree Bpdu-Filter - Supermicro SSE-G2252 User Manual

SSE-G2252/SSE-G2252P Switches User's Manual

spanning-tree bpdu-filter

This command filters all BPDUs received on an edge port. Use the no form to disable
this feature.
Syntax
[no] spanning-tree bpdu-filter
Default Setting
Disabled
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
• This command filters all Bridge Protocol Data Units (BPDUs) received on an
interface to save CPU processing time. This function is designed to work in
conjunction with edge ports which should only connect end stations to the switch,
and therefore do not need to process BPDUs. However, note that if a trunking port
connected to another switch or bridging device is mistakenly configured as an edge
port, and BPDU filtering is enabled on this port, this might cause a loop in the
spanning tree.
• Before enabling BPDU Filter, the interface must first be configured as an edge port
with the spanning-tree edge-port
Example
SSE-G2252(config)#interface Ethernet 1/5
SSE-G2252(config-if)#spanning-tree edge-port
SSE-G2252(config-if)#spanning-tree bpdu-filter
SSE-G2252(config-if)#
Related Commands
"spanning-tree edge-port" on page 34-19
command.
34-16