Sunday, December 3, 2023

H3C confirms performance of its new 800G CPO Ethernet switch

H3C completed a massive test of its co-packaged optics (CPO) enabled Ethernet switch (H3C S9827) driving traffic across 64 800G ports.

The companies said the test results demonstrate that H3C's 800G CPO silicon photonic switch series has "excellent reliability and stability in key performance indicators such as overall switch capacity, full-port 100%-line speed forwarding, and transmission latency." 

The test leveraged Spirent TestCenter 800G B2 Appliance, which offers an L1-L2 feature set combined with broad L3 protocol support over multi-rate 800G/400G/200G/100G/50G speeds, and enables testing of network switches and routers for benchmark performance and scale standards required by today's AI/ML datacenter operators. The B2 supports multi-rate interconnection with the switches via cables, optical fibers and other methods, and supports performance testing based on benchmark performance and routing switch protocol standards. 

The H3C S9827 series is an 800G data center switch based on CPO silicon photonics technology. It has a total switching capacity of up to 51.2T, and all 64 ports achieve 100%-line speed forwarding under different traffic. Each port transmission rate can reach 800Gbps. The product integrates CPO silicon photonics technology, fully meets the high throughput demand of intelligent computing network, and is suitable for AIGC cluster or data center high-performance core switching and other business scenarios.

The companies note that in actual operation, a 1% packet loss rate in Ethernet will lead to a 50% performance loss in the computing cluster.

After testing, the single-port transmission average delay of H3C 800G CPO silicon photonic switch is 1.085 microseconds, 20% lower than the previous generation product. The product uses CPO opto-electronic encapsulation technology to significantly shorten the high-frequency electrical signal interconnection distance from the switch chip to the optical module, helping to increase GPU computing efficiency by 25% within a single AIGC cluster.

"We were pleased to support H3C in verifying multiple breakthrough technology solutions for 800G Ethernet," said Andrew Liu, VP of Sales for Spirent in Greater China. "We have developed a comprehensive, end-to-end 800G testing suite that leverages decades of experience in Ethernet testing. This latest positive 800G test validating the reliability and high performance of H3C S9827, H3C's 800G CPO silicon photonic switch series, will help ensure successful deployments of this complex new technology and reliable high-speed networks to meet future demand."

Yutao Li, Vice President of Network Product Line of H3C and General Manager of Switch Product Line, said that "The 800G high-performance switch, bolstered by CPO technology, will provide higher network capacity for cutting-edge applications such as AIGC and large-scale model training, paving the way for further improvement in the scale and computing power of computing clusters. This joint test fully reflects H3C's leading technical strength in the field of digital infrastructure. In the future, H3C will also help customers from various industries to comprehensively boost Ethernet performance, fully unleashing the value of computing power."

Huawei offers OTN DWDM + Passive Optical LAN for Airports

At a meeting of Airports Council International (ACI) in Muscat, Oman, Huawei presented its design on how to build a fully-connected smart airport using OTN DWDM, fiber sensing, and Passive Optical LAN technologies.

Key elements:

  • Airport IP+DWDM backbone network solution: OTN DWDM enables physical isolation among multi service systems, ultra-high capacity up to 96 Tbps per fiber, supporting traffic growth in the next 10 to 15 years. In addition, this solution can support real-time intelligent fiber detection and provide the early warning for fiber abnormal status and the accurate fault location (meter-level). All this helps ensure highly-reliable data transmission, investment saving and O&M efficiency improvement.
  • Airport IP+POL access network solution: For airport terminals and airfields, Huawei IP+POL point-to-multipoint passive optical network solution offers secure & reliable multi-service integrated access for various information terminals and simplifies the network architecture & cabling to reduce power consumption by 50%, reduce cables by 90% and support long-term smooth expansion for the future.
  • Airport perimeter inspection solution: By using distributed optical fiber sensing and AI-enhanced algorithm, the innovative airport perimeter inspection solution can achieve zero false negatives, reduce the false positive rate by upwards of 90%, and enable meter-level accurate locating of intrusion events.

Dell'Oro: Cloud Service Provider Switch Sales Slow

For the first time in more than three years, spending on data center switches by Cloud Service Providers (SPs) was flat in 3Q2023, while overall global sales of data center switches was up 7%, according to a new report from Dell'Oro Group.

"Data center switch sales have maintained robust performance, reaching near-record levels in 3Q 2023," said Sameh Boujelbene, Vice President at Dell'Oro Group. "However, despite such a strong level of sales, the market growth started to exhibit signs of slowdown compared to previous quarters, particularly evident in the Cloud SP segment where spending remained flat compared to the year-ago period. Concurrently, spending from large enterprises surged by strong double-digits. While Cloud SPs seem to be shifting spending away from traditional front-end networks supporting general-purpose servers to focus more on Artificial Intelligence (AI) infrastructure, the slowdown in Cloud SPs spending during the quarter is also the result of ongoing digestion of existing capacity. We anticipate this digestion will impact various segments to varying degrees and timelines, aligning with the sequence in which they got their demand and orders fulfilled. In other words, customers who received their orders early on are the first to enter a digestion cycle," added Boujelbene.

Additional highlights from the 3Q 2023 Ethernet Switch – Data Center Report:

  • For the second consecutive quarter, Arista, Cisco, and HPE captured most of the revenue growth and were able to gain revenue share during the quarter.
  • Geographically, sales growth was broad-based across all regions, except China which declined 12 percent.
  • Further fueled by AI applications, shipments of 200 Gbps, 400 Gbps, and 800 Gbps switches constituted approximately 25 percent of the revenue and over 20 percent of the total shipments. 
  • Although Amazon, Google, Meta, and Microsoft continue to drive the majority of deployments, there was an increasing number of shipments directed toward Tier 2/3 Cloud Service Providers and Large Enterprises.

Arista announces new CFO and Board changes

Arista Networks named Chantelle Breithaupt as its new CFO effective February 2024. She comes to Arista with over 25 years of global financial roles, including as senior vice president and CFO of Aspen Technology. Prior to that she had executive finance roles at Cisco Systems and across four GE businesses.

Arista Networks also announced that Andy Bechtolsheim will step down from its board of directors and as an executive officer. Bechtolsheim will become the chief architect for Arista Networks.

In addition, Ken Duda, founder and CTO, will join the board. 

Hugh Holbrook, group vice president, software engineering, will take on the role of chief development officer (CDO).

“I warmly welcome Chantelle to the team as my new business partner in 2024 as we work to achieve Arista’s ambitious goals,” said Jayshree Ullal, chairperson and CEO for Arista Networks. “I will enjoy continuing to work with Andy, Ken and Hugh as visionaries taking Arista through its next phase of growth and opportunity.”