Stopping Spanning Tree broadcasts from a 3560 switch.

There is only 2 switches. Spanning tree is not configured.. but when monitoring traffic, i keep seeing these... and there are a ton of them..
79      34.081723      Cisco_1c:be:8c      Spanning-tree-(for-bridges)_00      STP      Conf. Root = 32772/00:1b:54:1c:be:80  Cost = 0  Port = 0x800c
80      36.086681      Cisco_1c:be:8c      Spanning-tree-(for-bridges)_00      STP      Conf. Root = 32772/00:1b:54:1c:be:80  Cost = 0  Port = 0x800c
95      53.814725      Cisco_1c:be:8c      Cisco_1c:be:8c      LOOP      Reply

How do i turn these off?
Who is Participating?
from_expConnect With a Mentor Commented:
on all active physical interfaces
use range command
conf t
interface range gi1/1 - 10
on the particular interface type: spanning-tree bpdufilter enable
this command will disable broadcasting of bpdu packets from this interface and will filter out all incoming bpdu packets

conf t
interface gi1/1
spanning-tree bpdufilter enable
jaysonfranklinAuthor Commented:
do I do that on all the physical interfaces or just the vlan interfaces?
The new generation of project management tools

With’s project management tool, you can see what everyone on your team is working in a single glance. Its intuitive dashboards are customizable, so you can create systems that work for you.

jaysonfranklinAuthor Commented:
i just did int range 0-52

im still getting this one though..

389      20.083187      Cisco_1c:be:8c      Cisco_1c:be:8c      LOOP      Reply

what is this? im assuming i need to do that for all the int's on SW2  or just doing it on the main one should be good?
it looks like cisco loop detection protocol.
it should funtion
Don JohnstonInstructorCommented:
They appear to be BPDU's. Without seeing the complete frame it's hard to say for sure.

Spanning tree is enabled by default of all Cisco switches. I REALLY don't recommend turning it off. The BPDU's aren't consuming much bandwidth and they'll prevent a layer 2 loop if a redundant link is ever connected.
All Courses

From novice to tech pro — start learning today.