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Re: [802.3_100GCU] Optics - No AN for FEC



For those of you who were not in the 802.3bj task force meeting this morning,

 

I wanted to make clear that I sent the message below in response to questions at the microphone this morning regarding whether auto-negotiation of FEC is needed or wanted for optics.

 

Jeff

 

From: Jeffery Maki
Sent: Friday, January 27, 2012 10:24 AM
To: STDS-802-3-100GCU@xxxxxxxxxxxxxxxxx
Subject: Optics - No AN for FEC

 

All,

 

In the NG 100G Optical Ethernet Study Group this week, the presentation http://www.ieee802.org/3/100GNGOPTX/public/jan12/traverso_01_0112_NG100GOPTX.pdf was made by Gary Nicholl with the key statement:

 

If new PMD(s) employ FEC, preference is that it is mandatory

Low Latency FEC is preferred

Proliferation of FEC types is burdensome

 

Auto-negotiation is not sought. The presence or lack of presence of FEC is considered to be a separate PMD.  See slide 11 on how to manage FEC over various PMDs.

 

Title slide with author list:

More thoughts on FEC

Jan-2012

Matt Traverso, Cisco

Gary Nicholl, Cisco

Jeffery Maki, Juniper

 

 

Slide with broad list of system-centric supporters:

Supporters

Joel Goergen, Cisco

Ted Sprague, Infinera

Scott Kipp, Brocade

Dan Dove, Applied Micro

John D’Ambrosia, Dell

Kapil Shrikhande, Dell

 

 

Jeffery Maki

Juniper Networks, Inc.