[ale] USB3 to Ethernet throughput

Jim Kinney jim.kinney at gmail.com
Fri Aug 14 12:08:57 EDT 2015


I bought a "pluggable usb3-hub3me" for around $30. GigE plus 3 usb3 ports
and the driver is in the kernel since late 3.5 series. I've not tested the
throughput yet as I mostly use it at work and congestion on the wire is
only exceeded by congestion on the wireless.
On Aug 13, 2015 3:54 PM, "DJ-Pfulio" <DJPfulio at jdpfu.com> wrote:

> On 08/13/2015 02:23 PM, Raylynn Knight wrote:
> >  Obviously you would invalidate the effort of using a PC if you still
> resort to USB Ethernet devices.
>
> A Chromebook C720 using a USB3-to-GigE adapter tests to about 500 Mbps
> with iperf.
>
> $ iperf -c istar
> ------------------------------------------------------------
> Client connecting to istar, TCP port 5001
> TCP window size: 43.8 KByte (default)
> ------------------------------------------------------------
> [  3] local 172.22.22.11 port 44658 connected with 172.22.22.20 port 5001
> [ ID] Interval       Transfer     Bandwidth
> [  3]  0.0-10.0 sec   603 MBytes   505 Mbits/sec
>
>
> Not an extensive test, but going to other machines on the network showed
> similar results from the C720.  Those other machines test in the 940+
> Mbps between each other.  As a gige router, not good enough, but as a
> WAN gateway - probably fine for most of us who will never see GigE
> connections.
>
> Is anyone here signed up for the 2Gbps service from Comcsst at home for
> $300/month + $500 install + $500 "activation" + $??? equipment fees?
> Comcast claims 1.5M people in the Atlanta area can get this service.
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