Thread Links Date Links
Thread Prev Thread Next Thread Index Date Prev Date Next Date Index

[802SEC] IEEE P802.3cb draft PAR and CSD response - 2.5 Gb/s and 5 Gb/s Backplane and Short Reach Copper

Dear EC members,

In support of subclause 10.2 'IEEE 802 LMSC Approval' of the LMSC Operations Manual please find below the required information in respect to the IEEE P802.3cb Standard for Ethernet Amendment: Physical Layer Specifications and Management Parameters for 2.5 Gb/s and 5 Gb/s Operation over Backplane and Copper Cables PAR for consideration at the November 2015 plenary.

Best regards,

[1] Draft PAR and CSD responses:

Draft PAR: <>
CSD responses: <>

[2] Explanatory technical background material:

There is a greater bandwidth need than the current 1 Gb/s Ethernet connectivity over backplane and copper cable that serves rotational storage devices ("Hard Disk Drives", HDDs). The object based HDD market is expected to grow significantly to meet the growing cloud storage demand and the existing 1 Gb/s solution is already bandwidth limited. While existing 10 Gb/s and higher speed solutions fulfill the bandwidth need for HDD's, they do not lend themselves to optimized system cost. The sustained bandwidth needs for HDD are on the order of 2.5 Gb/s to 5 Gb/s and this new standard will provide an optimized system cost vs. performance solution in this growing market segment

[3] Status of the development of the PAR:

The draft PAR and CSD responses are pending IEEE 802.3 Working Group approval at the November 2015 plenary.

Since the submission deadline for the 4th December 2015 NesCom meeting (16th October 2015) occurs prior to the date of the November IEEE 802 EC meeting, I will pre-submit this draft PAR to NesCom on the understanding that:

[a] Any changes to the draft PAR text resulting from the Plenary will be promptly communicated to the NesCom Administrator.
[b] Should the IEEE 802.3 Working Group not approve the submission, it will be removed from the IEEE 802 LMSC Executive Committee and NesCom agenda.
[c] Should the IEEE 802 LMSC Executive Committee not approve the submission, it will be removed from the NesCom agenda.

This email is sent from the 802 Executive Committee email reflector.  This list is maintained by Listserv.