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[802.3_SPMD] closing remaining comments - R1-3



All – I encourage you to use the reflector to close the remaining comments.  I will start a thread on each.  This one is for R1-3.

Comment R1-3 was on 189.1.4.2, page 139, line 13, trying to clean up text that used to mention that these MPI’s were “associated with a DTE”.  As such, “local MPIs” became unreferenced, the text itself isn’t really about management, and “may not” could be read as a prohibition rather than a possibility.

Sugested remedy was:

Replace:

"An MPI may not be managed using LLDP. In this case, management of local MPIs may be available, but LLDP discovery and power negotiation with remote MPIs is not possible"

With:

"For an MPI that is not managed using LLDP, LLDP discovery and power negotiation with remote MPIs is not possible"

 

The editor’s proposed accept in principle, deferred was to change the new text to:

"LLDP discovery and power negotiation with a remote MPI is not possible when the MPI is not using LLDP."

 

I note that another comment (R1-19) has changed the title of the subclause to “MPIs not using LLDP”, and has changed the first sentence to delete the term “managed”, so that it reads: An MPI may not be using LLDP.  In this case, management of local MPIs may be available, but LLDP discovery and power negotiation with remote MPIs is not possible.

 

As such, I would suggest the following modification of the commenter’s remedy:

ACCEPT IN PRINCIPLE.

Replace content of 189.1.3 with “For an MPI not using LLDP, LLDP discovery and power negotiation with remote MPIs is not possible.”

 

I put as a question whether we need to go further.  I would suggest that if you don’t have LLDP on some nodes on a powered mixing segment, but have it on others, power management at the MPSE gets all messed up.  In this case, should we add the sentence:

“If LLDP is expected to be used to manage power then all nodes on the mixing segment should be capable and enabled for using LLDP.”

 

George Zimmerman, Ph.D.

President & Principal

CME Consulting, Inc.

Experts in Advanced PHYsical Communications

george@xxxxxxxxxxxxxxxxxxxx

310-920-3860

 


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