| One more thought.
We could also respond, that what we are doing is a physical layer project and therefore is equally applicable to an automotive subsystem that implements bridge or router functionality, or to an automotive subsystem that implements end-station functionality, or to an automotive subsystem that implements both bridge and end station functionality, etc.
BTW, I think the CSD on balanced cost is becoming somewhat dated and may need to be revisited by 802.
—Bob
Ruben:
The balanced costs item in the CSD was created when 802 projects almost always addressed enterprise networks. The end stations were workstations/desktop computers and servers, and infrastructure included the enterprise cable plant, routers and bridges (switches), wireless access points, etc. That holds together roughly for newer applications.
IMHO, telecommunications applications break down as I personally consider all of the metropolitian and wide area links and associated equipment as infrastructure. For most of that application, none of the traditional division holds. Few “end stations” connect directly to the metropolitan or wide area network.
Automotive is somewhat different as we know. The cabling, end stations and bridges in an auto network are all engineered. I equate an ECU to a server, but that ECU may have bridge functionality built into it so it can have what has traditionally been end station and infrastructure functionality.
Both the Responses and Motions files for 15 May contain my cut at a response to the 802.1 question. George Zimmerman is handling it for B10GAUTO folk this week, and has asked for more clarification from 802.1 on what they really want (as opposed to my thinking what I thought they meant). We will want to make the responses the same for P802.3cy and P802.3cz as both received the same comment on identical CSD text.
—Bob
Bob,
I would like to know what is meant in other projects with "The balance of costs between infrastructure and attached stations is not applicable to the automotive environment.”. What is infrastructure and what is station and what is the rational behind this requirement. Understanding well these points are the basis to build an answer to the comment.
Thanks
Rubén Pérez-Aranda
CTO at KDPOF_____________________________________________________________
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