No, he means EtherNet/IP is a specific, industrial standard. It's got my=20
vote for the worst named one ever.

https://en.wikipedia.org/wiki/EtherNet/IP


Darron


On 3/28/2017 5:28 PM, James Cameron wrote:
> On Tue, Mar 28, 2017 at 11:49:20AM -0400, William Couture wrote:
>> Ethernet/IP is the protocol, which runs on top of TCP/IP and UDP.
> Heh.  Guess it depends on whether you are looking from the bottom or
> from the top.  My perspective is that UDP is on top of IP which is on
> top of Ethernet, and the whole assemblage is part of TCP/IP.
>
> TCP/IP is a protocol suite, containing TCP, UDP, and a few others,
> such as ICMP and ARP.
>
> When you implement TCP/IP, you choose which layers and protocols you
> want.
>
> For a system with an Ethernet socket, you're looking at Ethernet, MAC,
> ARP, IP, ICMP, and then whatever transports you need; TCP or UDP.
>
> For a system with a serial connection, you're looking at SLIP or PPP,
> then IP, ICMP, and then whatever transports you need; TCP or UDP.
>
> For a system with a 802.11g/n/ac connection, you're looking at the
> same kind of protocol stack as Ethernet, plus a side stack to deal
> with scan, association, and authentication.
>
> I've coded with these stacks a few times, with C or Forth.  My current
> favourites are an embedded Linux kernel on an ARM, or LWIP on devices
> that are too small.
>
> I've also used the WizNet chips, but I found them terribly power
> hungry because of the Ethernet PHY requirements; which these days are
> a bit of a throwback to the time when power and heat were less
> controlled.  ;-)
>
> I'm a networking guy.  I'm at home with TCP/IP questions.
>
> For a very simple UDP transmitting system, with an Ethernet PHY, you
> can, at a pinch, just make a buffer containing the UDP packet wrapped
> in IP wrapped in Ethernet, and submit it for transmission by the
> device.  Broadcast or multicast is easy, but unicast will require also
> implementing ARP.  Unless you want to hard code the MAC address of the
> peer(s).
>

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