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Sorry to trouble you with a trivial issue -
just trying to help:
Paragraph 13.4.1 introduces the term "network
interface device (NID)" - I assume from the context that an NID is what we might
commonly refer to as a hub, but I can see no formal definition of NID in the
definitions section (1.4) of the 802.3af spec or the full 802.3 spec, nor does
it feature in the diagrams of sections 33.1 or 33.2. Is NID worthy of a formal
definition?
On closer reading of 33.4.1.1.1 - this refers
to "Equipment [presumably NIDs?] containing multiple instances of PSE and/or
PD..." - I am trying unsuccessfully to envisage a piece of equipment with
multiple PDs, or a mixture of PSEs and PDs, but if such equipment could exist,
and if it is an NID, then I am more unclear about what the term "NID"
actually covers.
Regards -
Charles Palmer Technical Director, DSP Design Ltd
email: charles@xxxxxxxxxxxxx 7 Tapton Park Innovation Centre, Brimington Rd, Chesterfield S41 0TZ, UK ph: +44 (0) 1246 545 918 |