Re: [8023-POEP] Classification Concept Based on Diab/Schindler Motion
Hi Tom,
The idea is that AT PSE can choose one of the following methods (or
both).
Method 1: PSE is using class attempt # 1. If class is 0,1,2,3 then in is
and AF PD and PSE continue with AF procedure.
It doesn't mean that AT PSE can't do two classification attempts. It can
however it is not necessary in this scenario.
If class is 4 then PSE that is using L1 only, must use 2 fingers (two
classification attempts) in order to allow AT PD to detect that the PSE
is a type 2.
If PSE is using L2 then it can use only 1st classification attempt and
after PD is on it can negotiate with the PSE to allocate less power.
PD must support both L1 and L2. Only PSE can choose one of the methods.
Yair
-----Original Message-----
From: owner-stds-802-3-poep@xxxxxxxx
[mailto:owner-stds-802-3-poep@xxxxxxxx] On Behalf Of Locke, Thomas
Sent: Wednesday, December 13, 2006 10:43 PM
To: STDS-802-3-POEP@xxxxxxxxxxxxxxxxx
Subject: Re: [8023-POEP] Classification Concept Based on Diab/Schindler
Motion
All,
On Sheet 4, 2-Event Type I/II (.af/.at) Interaction, Type II (.at) PSE
with Type I (.af) PD, It appears that an AT PSE always uses two
classification cycles. I thought that if an AT PSE saw class 0, 1, 2,
or 3, that it would assume AF PD, and continue with the AF procedures.
I thought the second classification cycle was only used with a class 4
ID, and that the only purpose of the second classification was to notify
the PD that there is an AT PSE, and that the PD would get full power.
If there is only a single classification cycle for an AF PD, then the
Comments on this page are not needed.
Tom Locke