Migrate to 25/100 Gigabit Ethernet — Get the Best Datacenter Return on Investment


Gartner in a recent report says, “In the Data Center, Just Say ’No‘ to Chassis-Based Switches and 10G/40G Switches to Save 70%”.

At Mellanox, we have built the industry’s leading 25/100G Ethernet network adapters, cables, transceivers and fixed form-factor datacenter switches. With over 65% market share, Mellanox is the market leader in the 25G+ high-speed adapter market, leading by a huge margin with the ConnectX network adapters.

Customers increasingly are realizing the advantages of Mellanox 25/100G Spectrum Ethernet switches, and adopting them for their Storage, Artificial Intelligence, and Cloud infrastructures. With more interconnect bandwidth, datacenter operators can worry less about network bottlenecks and focus more on building their mission critical applications.

Let us explore the top 4 reasons on why you should follow the trend and move to a 25/100G infrastructure:

1.     2.5X better server connectivity at the same price point

According to a recently published Crehan Research long-range market forecast report (January 2018), the average selling price (ASP) of 25G adapter ports is dropping fast and will soon dip below that of a 10G port. Similarly, Crehan predicts 25G Ethernet leaf switch ports should have a less than 10% premium over 10G, while reaching the crossing point in 2019.

With 2.5X better performance and no price premium, there is no longer any reason to buy a 10G adapter or leaf switch. Move to 25G now!!

Source: January 2018 CREHAN Long-range Forecast – Server Class Adapters

2.     25/100G for an Efficient and cost-effective data center cable plant

25G SerDes technology allows more bits to pass through a single strand of copper/fiber cabling. A 100G link would need 10 strands of cable when used with legacy 10G SerDes technology. With the 25G SerDes, 100G links require only 4 strands (see figure below). This fundamental improvement allows customers to extract 2.5X better performance with pretty much the same cabling infrastructure. In other words, use fewer cables by adopting higher speeds.

Source: Article in eetimes by Mellanox

3.     100 Gigabit Ethernet leaf-spine connectivity reduces overall infrastructure costs

40 gigabit Ethernet is a waning technology and is inefficient in terms of switch faceplate utilization. Contrast this with higher density 100G spine switches that can cost-effectively pack more bandwidth per rack unit space. 100G is more cost-efficient on a per gigabit per second basis. Even the January 2018 publication of the Crehan Long-range Forecast – Data Center Switch predicts 2018 will be the crossing point for the 40G Ethernet switch port ASP, which is expected to be higher than that of a 100G switch port. The main point is that 100G-capable spine switches deliver 2.5X better performance at a lower price point.

4.     Future-proof your network to extract better storage/server resource utilization

There are several datacenter trends that necessitate 25G server connectivity; a few examples include:

  1. Server utilization has increased with the popularity of virtualization and container-based micro-services / applications, which use a serverless With this increased utilization, you need more than 10G connectivity to the server.
  2. Distributed Storage with high-performance storage endpoints.
  3. Analytics workloads that may use bandwidth-intensive technologies such as GPU direct.

The Bottom Line

25/100G Ethernet infrastructures are both efficient and better performing at a lower price point in comparison to 10/40G infrastructures. Thus, going forward, there really is no reason to choose 10/40G interconnect solutions.

Mellanox Spectrum Ethernet Switches, ConnectX adapters, Bluefield SoC and LinkX cables deliver industry-leading performance and the most comprehensive 25/100G end-to-end solutions. Therefore, make the right choice and future-proof your data center with Mellanox.


Supporting Resources:

About Karthik Mandakolathur

Karthik is a Senior Director of Product Marketing at Mellanox. Karthik has been in the networking industry for over 15 years. Before joining Mellanox, he held product management and engineering positions at Cisco, Broadcom and Brocade. He holds multiple U.S. patents in the area of high performance switching architectures. He earned an MBA from The Wharton School, MSEE from Stanford and BSEE from Indian Institute of Technology.

Comments are closed.