[mythtv-users] Calling all Acer Revo AR1600-U910H users

Frank Merrill fmerrill1 at gmail.com
Wed Feb 10 21:44:29 UTC 2010

On Wed, Feb 10, 2010 at 3:56 PM, Dan Wilga
<mythtv-users2 at dwilga-linux1.amherst.edu> wrote:
> What Ethernet chip set does it use? Many chip sets don't support 9K jumbo
> frames, and some don't support anything but an MTU of 1500 (even at gig
> speeds).
> --

I don't know the answer to your specific question, but Jumbo Frames
are limited to a single subnet so all devices in that subnet would
have to be able to support Jumbo frames or it will result in worse
performance then not using Jumbo Frames at all.
If you have a desire to use them, as long as you have a router between
the IP subnet using Jumbo frames and any other part of your LAN that
can't support them, it could at least be beneficial for devices on
that one particular subnet.  Of course that router will have to also
havean interface that supports Jumbo frames on that connected

As far as calling anything that does support Jumbo frames Ethernet,
well, technically those aren't Ethernet anymore, as they no longer
comply with the IEEE 802.3 specs.  IEEE 802.3 does not recognize Jumbo
Frames due to the interoperability issues it causes with devices that
do comply with 802.3.

With that said, Jumbo Frames do have a place in segmented environments
where performance between devices on the same LAN segment can benefit
from it (where all have to be able to support Jumbo Frames).


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