Ethernet Study Group to Look at 400G and Beyond

The IEEE and the IEEE Standards Association have launched a study group tasked with exploring creation of a project within the 802.3 Working Group that would standardize capabilities beyond the 400 Gbps rate that is the maximum the organization oversees today.

The rationale for creating the 802.3 Beyond 400Gb/s Ethernet Study Group is laid out in the Ethernet Bandwidth Assessment report, which was released in April. It points to demand from video, hyperscale data centers, 5G and Wi-Fi.

The trend lines point to more users, faster access speeds, more services, more devices and greater differences between average and peak demand. The press release announcing the study group points out that those findings were before the advent of the COVID-19 pandemic, which has “magnified” those trends.

The study group will take advantage of expertise worldwide as it defines a project for the broader working group. The first meeting is slated for the 802.3 Ethernet Working Group’s interim session during the week of January 18, 2021.

Each step in raising the ceiling on standardization encompasses issues, challenges and questions that are qualitative as well quantitative in nature.

“The path to beyond 400 Gb/s Ethernet exists, but there are a host of options and physical challenges that will need to be considered to take the next leap in speed rate for Ethernet,” John D’Ambrosia, a Distinguished Engineer for Futurewei Technologies, said in a press release. “Both the historical trend lines for Ethernet bandwidth demand and everything the industry understands today about its future needs and technology growth curves indicate that the time to take the next step is now, in order to satisfy humanity’s needs and desires for connectivity.”

SD-WAN, Ethernet and WiFi are Key to Business Customers Survey Finds

Spiceworks Ziff Davis surveyed 620 IT decision makers in January about business connectivity products and how they see the network services landscape evolving. What came through in the survey responses is a desire to upgrade and take advantage of evolving technology as demands on the network continue to grow.

The commentary noted that the survey was conducted before the COVID-19 pandemic bolstered the importance and profile of remote tools and technology.

The report paints a rosy picture for SD-WAN. Spiceworks says that 11% of organizations will start using the technology within the next two years. That’s atop the 21% already doing so. Large organizations will be even quicker to adopt, with 29% of enterprises planning to adopt by 2022, up from 33% today.

The use of MPLS is reduced by SD-WAN. MPLS currently has 24% adoption. However, 5% of respondents said that their companies are discontinuing its use, while only 3% are planning to start using it.

10GbE also is popular. Asked what Ethernet speed they planned to adopt over the next two years, 10GbE was the most popular answer, with 43% of SMBs say they plan to upgrade to that speed. More than one-third of larger enterprise respondents planning to upgrade Ethernet speed in the next two years will choose either 40GbE or 100GbE. 

Slower 2.5GBASE-T and 5GBASE-T Ethernet, which are less expensive, will be more popular with small businesses (11% of which plan to use that option) compared with enterprises (only 5% of which plan to use that option).

WiFi is Huge
The report also covers the continued growth of WiFi in the workplace. The technology now is used by 96% of businesses.

The Wi-Fi naming convention has been simplified in order to make things easier for a broad constituency, the report notes. Seventy-one percent of respondents say WiFi 5 (802.11ac) is the fastest iteration of the standard that they use, followed by WiFi 4 (802.11n) at 15%.

The newest version of the standard (WiFi 6 or 802.11ax) and the oldest versions (802.11g and 802.11b or older) had the lowest usage rates. All were under 10%. Six percent of respondents did not know what generation of Wi-Fi they were using.

Twenty-nine percent of businesses plan to upgrade to a new standard within the next two years. The firm found that 75% will move to WiFi 6 and 11% to WiFi 5. The rest don’t know their plans – except for 1% who plan to move to WiFi 4.