Home » 2012 » August

Show more end user support

• United Airlines and IBM •Brocade is an end user and we would like to use 40GE links between switches and to LANs to create File Area Networks (FAN) • Most 40 GE customers are more cost conscience than 100GE users and can’t afford to...

Continue reading »

Where would 40GE fit in 2010?

40GE would compete with 10GE and could increase sales of 100GE 40GE could give better value than 10GE with only 33% more BWLP but 4 times the bandwidth • Majority of new backbone links would be over new fiber in the core of the network,...

Continue reading »

Why is 10GBase-SR difficult to make?

10GBase-SR put great constraints on transceiver designs • 300 meters * 10G = 3,000 MHz*km bandwidth length products (BWLP) of link – 1GE only has a bandwidth length product of ~1,000 MHz*km – OM3 fiber has a BWLP of 2,000 MHz*km, so the BWLP of...

Continue reading »

Why is 10GE so slow (at being adopted)?

Extract from Finisar proposal to 8GFC Fibre Channel (http://http://www.sfpcables.com/) : Practical 10G VCSELs to date have been small aperture MM devices. – Yield VERY poorly even to largest allowed spectral width – This is largest single cost driver for 10GBASE-SR Practical TX design almost impossible....

Continue reading »

10GE Can’t Compete with 1GE

According to Dell’Oro, the average selling price (ASP) of a 10GE port was 31 times higher than a port of 1GE in 2006 – Price ratio between 1GE and Fast Ethernet was 4.8 times 10GE is in a different league than 1GE 1GE ASP approaching...

Continue reading »

Recap of 10GE Adoption

Dell’Oro reports and forecasts 10GE port shipments every six months. This graph shows forecasts and predictions from the three latest reports. Predicted 854k ports in Jan 06 Report Reported 318k ports in Jan 07 Report 526k Ports shipped by Jan 2007 More ports should ship...

Continue reading »

What are the applications for 40G?

High speed, cost effective data intensive applications. The better question is who will buy it or use it? Companies who need 10GE or more but not 100GE Much larger market than 100GE because it will be lower cost Fast Ethernet – 171 M Gigabit Ethernet...

Continue reading »

The April Meeting Had These 40GE Issues

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...

Continue reading »