[f-nsp] STP BPDU filtering

Robert Hass robhass at gmail.com
Tue Dec 17 16:29:42 EST 2013


If you have enabled spanning-tree for VLAN then "no spanning-tree" on the
port works like BPDU-Filter.
BPDUs are ingress filtered and not sent on this particular port.

Rob


On Mon, Dec 16, 2013 at 10:19 AM, Alexander Shikoff
<minotaur at crete.org.ua>wrote:

> On Sat, Dec 14, 2013 at 11:21:28PM +0100, Robert Hass wrote:
> >    int ethe 12/8
> >     no spanning-tree
> It is set by default on MLXe.
> And it does not protect from BPDUs receiving and forwarding.
>
> >    On Sat, Dec 14, 2013 at 2:12 PM, Alexander Shikoff <[1]
> minotaur at crete.org.ua> wrote:
> >
> >      Hi,
> >      Recently I noticed that my Brocade MLXe-16 does not drop STP BPDU
> packets
> >      even if 'spanning-tree protect' is configured in port-configuration:
> >      [2]telnet at lsr1-gdr.ki#show int eth 12/8
> >      10GigabitEthernet12/8 is up, line protocol is up
> >        STP Root Guard is disabled, STP BPDU Guard is enabled
> >                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
> >      But there are a lot STP BPDUs coming in that port, and moreover they
> >      are forwarded to all other ports within one VLAN.
> >      Generally, I need just to drop all incoming STP BPDUs on all ports,
> >      and nothing else. Any hints? Thanks in advance!
> >      --
> >      MINO-RIPE
> >      _______________________________________________
> >      foundry-nsp mailing list
> >      [3]foundry-nsp at puck.nether.net
> >      [4]http://puck.nether.net/mailman/listinfo/foundry-nsp
> >
> > Ссылки
> >
> >    1. mailto:minotaur at crete.org.ua
> >    2. http://telnet@lsr1-gdr.ki/#show
> >    3. mailto:foundry-nsp at puck.nether.net
> >    4. http://puck.nether.net/mailman/listinfo/foundry-nsp
>
> --
> MINO-RIPE
>
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