Spanning-Tree Bpdu-Filter - Edge-Core ES3528MV2 Management Manual

D
EFAULT
0
C
OMMAND
MST Configuration
C
OMMAND
The MST region name
designate a unique MST region. A bridge (i.e., spanning-tree compliant
device such as this switch) can only belong to one MST region. And all
bridges in the same region must be configured with the same MST
instances.
E
XAMPLE
Console(config-mstp)#revision 1
Console(config-mstp)#
R
ELATED
name (1076)
This command filters all BPDUs received on an edge port. Use the no form
spanning-tree
to disable this feature.
bpdu-filter
S
YNTAX
[no] spanning-tree bpdu-filter
D
EFAULT
Disabled
C
OMMAND
Interface Configuration (Ethernet, Port Channel)
C
OMMAND
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
S
ETTING
M
ODE
U
SAGE
(page 1076) and revision number are used to
C
OMMANDS
S
ETTING
M
ODE
U
SAGE
spanning-tree edge-port
– 1077 –
| Spanning Tree Commands
C 34
HAPTER
command.