[uClinux-dev] Serial Connection of Ethernet Switches

[Jamie Lokier]

Remco Poelstra wrote:
> Mark Phillips schreef:
> >HI All,
> >
> >Sorry to do this but usual my contacts can't give me a answer to this
> >question.
> >
> >
> >I have a series of switches connected in series. That is port B of
> >switch 1 is connected to port A of switch 2, and port B of switch 2 is
> >connected to port A of switch 3 ....
> >
> >What is the maximum number of switches.
> >I need a reference ie RFC, Standard etc.
> 
> I think that is pretty unlimited, since a switch creates a seperate 
> collision domain.

Yes.  It's hubs which have a strict limitation, due to the maximum
time to detect collisions.

For switches the MAC address learning capacity and spanning tree
capacity of the switches - but that's to do with the number of devices
connected.  I'm not sure if the spanning tree protocol has a daisy
chain limitation due to its timeouts.

-- Jamie