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  • Highlights
  • Key Stats
  • Overview
  • Challenges
  • Solutions
  • Results


  • Use FS 40G and 10G enterprise switches for high-bandwidth and low-latency interconnection to meet the needs of high-performance computing networks.

  • Build a dual-link redundancy solution to achieve uninterrupted network services.

  • Employing MLAG in conjunction with the LACP not only enhances link utilization but also bolsters overall network throughput.

Key Stats

  • Up to 2.4 Tbps switching capacity.

  • Dual-link design increases link stability.

  • LACP protocol maximises link utilisation.


Dream Chip Technologies GmbH is Germany's largest independent engineering service provider specialising in the development and design of ASICs (Application-Specific Integrated Circuits), SoCs (System on Chips), FPGAs (Field-Programmable Gate Arrays), embedded software and discrete systems, with over 25 years of experience in the microelectronics industry. The company has accumulated extensive experience in the field of chip design and is committed to providing customers with high-performance, low-power, customised solutions.


In recent years, Dream Chip Technologies' business has been extensively involved in automotive, consumer electronics, aerospace, medical and other fields, with a large customer base. This expansion has triggered a corresponding rise in industry business volumes alongside a surge in internal enterprise data traffic. As a result, the network is experiencing bandwidth constraints and reduced speeds, which hamper productivity and degrade the user experience.

This increased network workload has the potential to overtax network components, raising the risk of hardware malfunctions and service disruptions. This concern is particularly acute when delivering customised services like video codecs, image processors, embedded processors, and chip designs, where network stability is paramount to ensure continuous operations.

Moreover, the current network, built upon an STP+VLAN three-level architecture, is proving inadequate for these evolving demands. The STP (Link-State Protocol)'s link-blocking feature leads to suboptimal Layer 2 link utilisation and slows network convergence. The redundancy framework, relying on standby configurations using the VRRP (Virtual Router Redundancy Protocol), fails to effectively harness three-tier link capabilities, limiting servers to connections with devices in active-standby mode only. This outdated infrastructure falls short of the company's critical needs for robust network stability and seamless service.


Based on the fact that the company's customers cover a wide range of industries and the existing network is not sufficient to support the demand, FS technologist built a dual-link redundancy solution, incorporating MLAG (Multi-Chassis Link Aggregation) technology to enhance the 40G backbone network.

Specifically, the solution involves deploying two S8050-20Q4C switches that utilise MLAG for hardware-level redundancy, mitigating the risk of single points of failure and bolstering network reliability. Featuring 20 high-speed 40G ports, these switches provide up to 2.5 Tbps of switching capacity, leveraging PFC (Priority Flow Control) and ECN (Explicit Congestion Notification) technologies to deliver high bandwidth and low latency.

To further ensure network resilience, dual-link redundancy is established in each server cabinet with one S5850-48T4Q switch and one S5800-48T4S switch. The S5800-48T4S functions as an auxiliary, stepping in as a backup during 10G switch failures or updates. It interconnects with the core network through the S5850-48S6Q-R-PE switch. Meanwhile, the S5850-48T4Q-PE switch maintains a direct 40G uplink connection to the core S8050-20Q4C switch.

Additionally, the client network also benefits from the selection of S5800-48T4S switches, which provide reliable 1G connections for desktop PCs, ensuring comprehensive coverage and connectivity across the board.


FS Series High-speed Switches Expand Network Bandwidth

The core network is interconnected using FS S5850 series 10G and S8050 series 40G enterprise switches to establish business traffic, breaking through network bottlenecks and expanding bandwidth. RoCE provides efficient, low latency, lossless transport, necessary for modern datacenter applications. It also provides various access control policies for centralised management and easier configuration.

Dual Redundancy Design Achieve Uninterrupted Network Services

Backup network and PC network utilising FS S5800 series switches, dual redundancy design of equipment power supply, both the aggregation layer and access layer are designed with dual links, which can achieve network stability. Use S5800 series switches to build a set of failback networks, which can be forwarded through the backup network to achieve uninterrupted network services when the service network fails.

LACP Protocol Maximises Link Utilisation

MLAG Dual-Active Architecture, using the same model switches, providing a distributed and redundant architecture to ensure efficient network operation. By incorporating the LACP protocol, all links forward data to achieve high link utilization. With network-level security and stability capabilities like SSH, ACL, AAA, etc., FS S8050 series switches defend against network threats for enterprises.

"Our IT department has revised our planned network infrastructure together with your engineering team in the last few weeks. Thank you in advance for your support at this point!"

From Sören Schindler, Procurement and Control Manager at Dream Chip Technologies GmbH