Disabling Spanning-Tree Globally

[davidhuynh5]

Is there are way to disable spanning-tree globally on a cisco switch instead of per vlan? Can you provide the commmad? Why you ask..to bypass BPDUguard configured on another switch. Thanks in advance.

[kyukim · Accepted solution]

Hi,

As you already, it is not recommended to turn STP off. 

There is no global command to disable spanning tree globally.

But, you can disable all configured vlan by "no spanning-tree vlan 1-max vlan no of your vlans"

SW1(config)#no spanning-tree vlan 1-1014

SW1#sh span

*Mar  1 22:18:00.536: %SYS-5-CONFIG_I: Configured from console by console

SW1#sh span

SW1#sh spanning-tree

No spanning tree instance exists.

Hope this helps.

KK.

[KARUPPUCHAMY MALAIYANDI · Accepted solution]

Hi,

What is switch and IOS model.

If you are running a switch with CatOS model, the try this command

set spantree disable [vlan | all]

http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/catos/5.x/command/reference/setsn_su.html#wp1026808

Thanks

Samy

[Lei Tian · Accepted solution]

Or apply BPDUfilter on all ports

Not recommending you do that, because that against the best practice; just want give you another option.

HTH,

Lei Tian

[milan.kulik · Accepted solution]

Hi,

wouldn't

spanning-tree bpdufilter enable

(see

http://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/release/12.2_55_se/command/reference/cli3.html#wp1945458

for details)

be enough on the port connecting to the other switch?

HTH,

Milan