Broadcom BCM5316X Ultra-Low Power 2.5GE Switches

Broadcom BCM5316X Ultra-Low Power 2.5GE Switches are designed for multi-GE applications in the SMB, Industrial, and Service Provider markets. The BCM5316X switches support four 2.5GE SGMII+ ports, two 2.5GE/10GE XFI/SFI ports, and up to eight 10/100/1000Base-T ports with integrated GPHYs. The BCM5316X switches use the 28nm RoboSwitch™ architecture, also known as Robo-2. The BCM5316X integrates a powerful ARM Cortex-M7 CPU that enables designers to create switching platforms without adding an external processor. The BCM5316X is equipped with high-end forwarding mechanisms and is ideal for advanced QoS engine, flexible content filter processor (CFP), sophisticated VLAN manipulation capability, security features, packet synchronization for time-sensitive networks, and other applications.


  • Embedded ARM Cortex-M7, 400MHz
  • Up to 8×10/100/1000Base-T ports with integrated ultra-low-power GPHYs
  • 4×1GE/2.5GE.SGMII+ ports
  • 2×1GE/2.5GE/10G XFI/SFI ports with KR support
  • 1x RGMII
  • Switch cascading
  • 16K entry MAC address table
  • 1K multicast group support
  • Loop detection
  • 1K packets and byte.s counters
  • 1MB packet buffer
  • srTCM and trTCM meters (support color aware and color blind modes)
  • Eight CoS queues per port with priority flow-control
  • EEE 802.1p, MAC, and DSCP packet classification
  • Per-queue and per port shaper
  • 4K VLANs (IEEE 802.1Q) with Virtual Switching Instance (VSI) support
  • 1K CFP rules support (up to 192b key)
  • Mirroring and sFlow sampling
  • 16 LAG trunks (32 supported across cascaded switches)
  • VLAN mapping and translation
  • Protection and security mechanisms: port authentication (802.1x), isolation groups, BUM flood prevention, traffic metering, DOS filtering
  • IEEE802.3az Energy Efficient Ethernet (EEE)
  • 802.1BR standards-based port extender
  • AVB and Time-Sensitive Networking (TSN) (802.1Qbv, 802.1Qav, 802.1ASrev)
  • IEEE 1588 and SyncE support
  • Jumbo frame support: up to 10K bytes
  • 19mm × 19mm FBGA package


  • Unmanaged and Web-Managed SMB support
  • Industrial applications such as Industrial Automation, Robotics, Industrial appliances etc
  • Enteprise port-extender and security appliances
  • Home-Gateways and MDUs for broadband access
Published: 2018-12-17 | Updated: 2022-08-02