Industry’s First 5G Radio Switch for Cellular Fronthaul Networks

Broadcom has introduced the Monterey Ethernet switch - BCM56670, built specifically for cellular fronthaul networks. This high capacity device meets the stringent performance demands of new Ethernet-based 5G radios and supports existing CPRI-based radios, thus consolidating all radio traffic onto a standard, Ethernet-based infrastructure. The introduction of the Monterey Ethernet switch strengthens Broadcom’s position as a leader in carrier-class radio networking components.

The 5G build-out will require an increase in capacity of the mobile network by a factor of ten or more and a simultaneous tightening of key synchronization requirements by a factor of two or more. Ethernet technology is very high capacity, but in the past it has not met the strict synchronization and jitter requirements of cellular networks. The IEEE’s new 802.1CM (Time-Sensitive Networking for Fronthaul) standard provides a synchronization solution that solves this problem and the cellular network can now be upgraded to an end-to-end Ethernet-based architecture that meets the cost, capacity, and performance requirements of 5G.

The Monterey Ethernet switch is the result of the careful integration of a full set of radio-centric features with a terabit-class platform based on Broadcom’s widely adopted switching portfolio. High-resolution, high-accuracy synchronization compliant with IEEE 802.1CM, CPRI-to-Ethernet bridging, and nanosecond-scale jitter and delay control together with IEEE new fronthaul standard have been added to this state-of-the-art Ethernet switch to address all 5G cellular networking requirements. The Monterey Ethernet switch shares a set of common API interfaces with other Broadcom switching products via Broadcom’s Software Development Kit (SDK), thus minimizing development effort and accelerating system introduction.

Key Attributes and Benefits of the Monterey Ethernet switch:

  • Transports CPRI across standard Ethernet
  • Enables cellular-system designers to leverage the merchant-silicon-based Ethernet ecosystem
  • Connects directly to new Ethernet-based radios and installed CPRI-based radios
  • Terabit-class capacity to meet the 10x increase in capacity needed by 5G networks
  • Serves as a critical component in building mobile-edge computing platforms
  • Hardware support for key 5G requirements, including nanosecond-scale synchronization

Monterey Ethernet switch (BCM56670) product samples and System Reference Kits are available immediately. Click here to learn more.


  • Country: United States
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