Cisco nexus 5000 series Configuration Manual page 246

Configuring STP Extensions
• spanning-tree bpdufilter enable—Unconditionally enables BPDU Filtering on the interface.
• spanning-tree bpdufilter disable—Unconditionally disables BPDU Filtering on the interface.
• no spanning-tree bpdufilter—Enables BPDU Filtering on the interface if the interface is an operational
When you enable BPDU Filtering locally on a port, this feature prevents the device from receiving or
Note
sending BPDUs on this port.
Before You Begin
Ensure that STP is configured.
SUMMARY STEPS
1. switch# configure terminal
2. switch(config)# interface type slot/port
3. switch(config-if)# spanning-tree bpdufilter {enable | disable}
4. (Optional) switch(config-if)# no spanning-tree bpdufilter
DETAILED STEPS
Command or Action
Step 1 switch# configure terminal
Step 2 switch(config)# interface type slot/port
Step 3 switch(config-if)# spanning-tree bpdufilter
{enable | disable}
Step 4 switch(config-if)# no spanning-tree
bpdufilter
This example shows how to explicitly enable BPDU Filtering on the Ethernet spanning tree edge port 1/4:
switch# configure terminal
switch (config)# interface ethernet 1/4
switch(config-if)# spanning-tree bpdufilter enable
Cisco Nexus 5000 Series NX-OS Layer 2 Switching Configuration Guide, Release 5.1(3)N1(1)
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edge port and if you configure the spanning-tree port type edge bpdufilter default command.
Purpose
Enters global configuration mode.
Specifies the interface to configure, and enters the interface
configuration mode.
Enables or disables BPDU Filtering for the specified spanning tree
edge interface. By default, BPDU Filtering is disabled.
(Optional)
Disables BPDU Filtering on the interface.
Enables BPDU Filtering on the interface if the interface is an
Note
operational spanning tree edge port and if you enter the
spanning-tree port type edge bpdufilter default command.
Configuring STP Extensions
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