[mythtv-users] network card

[Gary Buhrmaster]

On Tue, May 6, 2014 at 7:00 PM, Raymond Wagner <raymond at wagnerrp.com> wrote:
.....
> Four HD channels will run you 50-60Mbps.  With TCP, that's not a problem.
> With UDP and an application layer that retransmits, that's not a problem.
> With no retransmission and more than two devices on the network, that's
> about the limit.  You're nowhere near saturated, but your risks of
> collisions beyond the ability of the switch's packet buffer to handle
> increases significantly.  Unhandled collisions mean data loss.  If using
> multirec with cable, you can easily double that rate.

s/collisions/packets_dropped/

My solution (not viable for all) is to use a better switch (I use
managed devices with (slightly) bigger buffers, and
instrumentation that collects port statistics.  I know if I lose
packets :-).  With proper network design, sometimes using
qos to minimize packet queuing and losses for important
traffic, one can run at much higher utilizations, even
minimizing microburst losses.

But if you have never played network engineer at $dayjob$,
or have a cheap unmanaged switch then yes, keeping
things at lower utilizations avoids ending up in the huh?
edge of the experience.

In any case, the OP never did indicate what his actual
requirements and expectations were.