Re: [Xen-devel] Re: Communicating with the domU from dom0 without Network

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 8/8/06 3:45 pm, "Ligesh" <xen@xxxxxxxxxx> wrote:

>  Actually I think serial port won't be sufficient actually. I am looking at it
> from purely manageability perspective, but even then, serial ports does not
> allow multiple simultaneious streams. I think in tcp/ip, the server gets a
> connection at a particular master port, say 80, and then it creates a slave
> socket at another port and spawns a child, and child actually carries out the
> communication through this slave port. I am not really an expert in
> networking, and that's my generic idea of how networking happens. Will such a
> system be possible with serial ports. I don't think so. I think I will I have
> to come up with some protocol to make multiple streams through serial port
> possible. Anyway, a generalized tcp-like communication stream independent of
> the networking stack looks like a good idea to me.

That's not how TCP/IP works and a statement like 'serial ports do not allow
multiple simultaneous streams' is not true since a serial port is part of a
physical link layer so you can implement whatever protocol you like over the
top (just as you can with e.g. an Ethernet port).

 -- Keir



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