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High Speed Study Group Update to the FCIA

High Speed Study Group Update to the FCIA. Scott Kipp Office of the CTO skipp@brocade.com May 30, 2007. Recap of last weeks meeting. The IEEE High Speed Study Group (HSSG) met at the ITU headquarters in Geneva last week. All the presentation can be seen on:

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High Speed Study Group Update to the FCIA

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  1. High Speed Study Group Update to the FCIA Scott Kipp Office of the CTO skipp@brocade.com May 30, 2007

  2. Recap of last weeks meeting • The IEEE High Speed Study Group (HSSG) met at the ITU headquarters in Geneva last week. • All the presentation can be seen on: • http://grouper.ieee.org/groups/802/3/interims/geneva_1_0507.html • The main goal of the meeting was to decide if 40 Gigabit Ethernet should be added to the High Speed Study Group (HSSG) that has already agreed to do 100GE. Two camps developed: • The access market (servers/supercomputers) support 40GE • The networking market (network aggregation) support 100GE only

  3. Dan Dove with HP ProCurve was a strong supporter of 100GE ONLY • The HSSG met at the ITU building in Geneva. The meeting room had 6 interpreter booths and nation placards. Dan gave a good Nikita Kruschev impersonation and was a forceful proponent of 100GE ONLY.

  4. What’s been agreed to so far by the HSSG? • The HSSG is in a project proposal phase has been going on for about 1 year. The group has mainly been focused on 100 GE but in January the request was made to add 40GE. • The process to approve a project and start a working group is arduous. • The following distances have been approved for the project proposal • 10 meters on copper cables • 100 meters on OM3 fiber • 10 km on singlemode fiber • 40km on singlemode fiber • The general feel of the group is that: • The 100 meter multimode solution will be 10Gig x 10 lanes • The 10km and 40 km singlemode solution will be 25Gib x 4 lanes

  5. The April Meeting Had These 40GE Issues • What are the applications for 40G? • – Explain issues with LAG in the context of these applications • • Show more end user support • • What is the number and type of PMDs required? • • Must not delay 100G • • Don't want to double the R&D effort • • What is the relative cost between 4 x 10 G and 40G • • What is the basis for having two MAC rates vs one • • What is the relative time to market? • Copied from http://grouper.ieee.org/groups/802/3/hssg/public/apr07/frazier_02_0407.pdf

  6. The Two Camps • The 100GE camp was mainly pushing back on 40GE because they think that 40GE will delay the release of the 100GE standard • Most would like to see the 40GE create their own project • Most say that 40GE would cause confusion in the market and split the market • Lead by Cisco, HP and Infinera • The 40GE camp would like to add 40GE to the HSSG project and not start a new project because it takes too much time • The IEEE process is considerably different than T11 and they have spent about a year doing this project proposal while T11 takes about 5 hours of work and two months of time. • Lead by Broadcom, Intel and Sun • Most presentations were supporting 40GE because 100GE proposals needed for the project proposal are mostly accepted.

  7. Sample Architecture of 4 X 25 G Transceiver • Chris Cole of Finisar showed how a 5:2 Serializer could convert 10 channel X10G to 4 channel x 25G in cole_01_0507

  8. Some Key Presentations • Howard Frasier of Broadcom showed possible switch architectures using 40GE and 100 GE in Frazier_01_0507.pdf

  9. Blade Server using 40GE • Ilango Ganga showed how blade servers can grow from 10GE links to 40GE links in ganga_01_0507

  10. Some Key Presentations • Shimon Muller of SUN showed how link aggregation of 4 x 10G is not as good as 40GE for some applications in muller_01_0507 • John Jaeger of Infinera showed how 100GE has the support of the networking community while 40GE does not in jaeger_01_0507 • Ron Luitjen of IBM showed how a Petaflop computer would need 40,000 links running at 40GE for servers and 100GE in the network in pepeljogoski_01_0507 • Ad Bresser of KPN (a leading Dutch ISP) showed how they will need a Tbps of bandwidth by 2012 in bresser_01_0507

  11. Conclusion • The group is in a deadlock with the 40GE camp preventing the approval of the project until at least July unless 40GE is added. The IEEE rules require a 75% majority to pass. • This deadlock could cause at least a three month schedule slip. • The HSSG standard is optimistically targeting release in 2009, but 2010 is probably more realistic.

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