[Bridge] bridge problem when one interface is in blocking mode

[wang dengyi]

--- Stephen Hemminger
<shemminger at linux-foundation.org> wrote:

> On Thu, 23 Aug 2007 11:17:44 -0700 (PDT)
> wang dengyi <dy_wang at yahoo.com> wrote:
> 
> > Hi Stephen,
> > 
> > Here is the detail
> > kernel version: 2.6.14
> > architecture: PPC
> > ehternet: from the processor mpc5200b
> > wifi manufactor: Netgate 5004 MP, Atheros chipset
> > wifi driver: madwifi 0.91
> > WDS on wifi: enabled.
> > 
> > I guess it's an issue combined by ethernet
> driver/wifi
> > driver and bridge. Is there anything you suspect
> that
> > I can check? 
> > 
> > I believe the 2 actions: updating forwarding
> database
> > when a stp package is received and delivering the
> > package based on the forwarding database, are
> correct.
> > I must miss something. For example, STP detection
> set
> > an interface as blocking and remove it from the
> > forwarding database? It's just my wild guess. 
> > 
> > By the way, I found Bartek reported the same issue
> on
> > 2.6.11.12 and 2.6.13.2. Here is the link:
> >
>
https://lists.linux-foundation.org/pipermail/bridge/2005-October/004710.html
> > He has 3 ethernet nic for each machine and his fix
> is
> > to update the forwarding database only when the
> port
> > is in learning or forwarding state.
> >
> 
> There was a bug fix in later kernel (2.6.19) that
> causes the forwarding
> database to be purged when STP decides not to use
> interface.
> 

Hi Stephen, 

I merged the bridge code from the kernel source tree
2.6.19. But it's the same thing: packages are sent
through the blocking interface. Anyway, I am worried
that something is missing when I merged the code.
Could you give me more information about the patch? If
it's possible, please send me  your patch for 2.6.19?
Thank you very much. 

At the same time, I am looking for the relationship
between blocking interface and the forwarding table
from the stp source code. No luck until now. Any hint?


Regards,

Dengyi



       
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