> -----Original Message-----
> From: jamal [mailto:hadi@xxxxxxxxxx]
> On Thu, 2004-07-29 at 09:24, Eble, Dan wrote:
> > Even if STP were implemented in user space, this part
> should be done in
> > the kernel to make sure that there is no window of time for
> a packet to
> > be received or transmitted after the link state changes.
> Your main problem there would be STP convergence time. Transfering the
> packet to user space and reacting should be several factors
> of magnitude
> faster than it takes STP to converge.
> The STP state should stay in the kernel. Control of it and
> BPDU handling
> is what i am suggesting to take out.
Is the time it takes STP to converge really the issue in this case?
When a port loses and then regains carrier, it needs to enter the
Blocking state without delay. If the carrier state change were handled
by a daemon, the bridge driver would have some time to transmit or
receive packets via that port before the daemon could tell it to block
the port, wouldn't it?