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Hi i would like to activate STP only in 5 ports of my switch, i i need
that the rest of them are free of STP, somebody tell me if this is
possible with cisco swtiches?

Oliver wrote:
> Hi i would like to activate STP only in 5 ports of my switch, i i need
> that the rest of them are free of STP, somebody tell me if this is
> possible with cisco swtiches?

No, however perhaps yes.

As far as I know it is not possible to disable STP on a single port,
only on a whole VLAN.

However, say you put your 5 "STP" ports in one VLAN and the "non STP"
ports
in a second VLAN.

You could then connect the two VLANs with a wire.

This will cost two ports on the switch and I do not know what wll
happen to the
STP packets. The "non STP" portion will either drop then or flood them.

It may be possible to block such frames with a MAC access-list.
This may work on a normal port and will effectively turn off
STP,

Why do you need to turn STP off? This is very unusual.

In article < om>,
Oliver <> wrote:

>Hi i would like to activate STP only in 5 ports of my switch, i i need
>that the rest of them are free of STP, somebody tell me if this is
>possible with cisco swtiches?

What model, what release?
In particular, CatOS or IOS?

http://www.cisco.com/en/US/products/...c.html#1029245

"Oliver" <> wrote in message
news: ps.com...
>
> Hi i would like to activate STP only in 5 ports of my switch, i i need
> that the rest of them are free of STP, somebody tell me if this is
> possible with cisco swtiches?
>

Typically yes ... "spanning-tree bpdufilter enable" will stop the port
sending and receiveing bpdu's.

BernieM