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Re: Straw poll

To: HSSG Distance <stds-802-3-hssg-distance@xxxxxxxx>
Subject: Re: Straw poll
From: Rich Taborek <rtaborek@xxxxxxxxxxxxxxxx>
Date: Fri, 02 Jul 1999 15:05:00 -0700
Organization: Transcendata, Inc.
References: <37E04260A7BBD211AF0F0090272A827117B505@xxxxxxxxxxxxxxxxxxx> <377CF495.F169E0CE@xxxxxxxxxxxxxxxx>
Reply-To: rtaborek@xxxxxxxxxxxxxxxx
Sender: owner-stds-802-3-hssg-distance@xxxxxxxxxxxxxxxxxx

OK, since others have included their reasons for supporting 9.58464 Gbps, I'll include mine for supporting 10.0 Gbps.

1) 9.58464 Gbps does NOT imply 9.58464 GBaud. If it does, it is automatically excluding all 10 GbE PHY proposals except for Serial TDM. I (MAS) have a bit of a problem with this and I'm sure that the WWDM and Parallel Optics and mixed signaling folks would also. The Signaling rates of MAS, WWDM, Parallel Opticcs and Mixed signaling proposals are all 5GBaud or less.

2) Based on (1) above, I see no validity in any cost arguments for selecting the any one speed or PHY signaling scheme over another until we know a lot more. I see no cost difference whatsoever in supporting either speed via MAS, WWDM, Parallel Optics or mixed signaling methods.

3) Even if a MAC/PLS rate of 9.58464 Gbps is accepted, the encoding is a separate issue. If the committee endorsed 8B/10B at 9.58464 Gbps, the line rate for Serial TDM would be 11.9808 GBaud. Is this acceptable for WAN transport? As another example, there is nothing that says the Baud for a MAC/PLS rate of 10 Gbps is going to be 12.5 GBaud.

Rich Taborek wrote:

I vote for: (2.)   Adopt as an objective: "Support speed of 10.000 Gb/s at the MAC/PLS service interface."
Best Regards,
Rich
--
"Thirion, Walt" wrote:

Ok group. In one more attempt to see if there is consensus within the ad hoc as represented on this reflector, please vote for one and only one of the following two motions. This straw poll will be conducted by email, so either post your vote to the reflector or send it directly to me.
Proposed motions:
______________________________________________________________
1.    Adopt as an objective:
   "Support speed of 9.58464 Gb/s at the MAC/PLS service interface."
______________________________________________________________
2.   Adopt as an objective:
   "Support speed of 10.000 Gb/s at the MAC/PLS service interface."
______________________________________________________________
Walter Thirion
Level One Communications
--
Best Regards,
Rich
-------------------------------------------------------------
Richard Taborek Sr.    Tel: 650 210 8800 x101 or 408 370 9233
Principal Architect         Fax: 650 940 1898 or 408 374 3645
Transcendata, Inc.           Email: rtaborek@xxxxxxxxxxxxxxxx
1029 Corporation Way            http://www.transcendata.com
Palo Alto, CA 94303-4305    Alt email: rtaborek@xxxxxxxxxxxxx

Best Regards,
Rich

-------------------------------------------------------------
Richard Taborek Sr.    Tel: 650 210 8800 x101 or 408 370 9233
Principal Architect         Fax: 650 940 1898 or 408 374 3645
Transcendata, Inc.           Email: rtaborek@xxxxxxxxxxxxxxxx
1029 Corporation Way              http://www.transcendata.com
Palo Alto, CA 94303-4305    Alt email: rtaborek@xxxxxxxxxxxxx

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