nanog mailing list archives

Re: OT - Small DNS "appliances" for remote offices.


From: Rob Seastrom <rs () seastrom com>
Date: Thu, 19 Feb 2015 08:13:09 -0500


Denys Fedoryshchenko <denys () visp net lb> writes:

Beaglebone has gigabit mac, but due some errata it is not used in
gigabit mode, it is 100M (which is maybe enough for small office). But
it is "hardware" mac.

The Beaglebone Black rev C BOM calls out the ethernet phy chip as
LAN8710A-EZC-TR which is 10/100 so there's your constraint.  The MAC
is built into the SoC and according to the datasheet the AM3358B is
10/100/1000.

Another hardware MAC on inexpensive board it is Odroid-C1.

Difficulty: hardware MAC tells you nothing about how it's connected,
either on the board or internally in the SoC.  Ethernet on Multibus
and Ethernet on PCIe (neither likely on an embedded ARM ;-) are both
"hardware MAC" yet the bus-constrained bandwidths will differ by
several orders of magnitude.

-r


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