Arista 7132LB Series

The Arista 7132LB is an FPGA-based Layer 2 and Layer 3 application switch delivering 133 ns L2 and 150 ns L3 latency at 25G across 48 SFP28 ports plus 4 QSFP28 uplinks. Its FPGA architecture enables precise latency characterization and deterministic forwarding, critical properties for financial trading environments where per-connection latency variation translates directly to execution risk and where the ability to measure and certify latency is a compliance and risk management requirement.

Onboard PTP timing distribution (IEEE 1588v2) with PPS input/output allows the 7132LB to serve as both a switch and a precision timing node in an exchange connectivity infrastructure. This eliminates the need for separate GPS-disciplined timing hardware at each rack, reducing cabling complexity while maintaining the sub-microsecond timestamp accuracy required for regulatory reporting and co-location operations in markets governed by MiFID II, Reg NMS, and similar timestamp precision requirements.

With 48 SFP28 server-facing ports and 4 QSFP28 uplink ports, the 7132LB supports fan-in topologies connecting multiple trading strategy servers to exchange market data feeds and order gateways. The port configuration also supports passive monitoring taps that allow dedicated analysis systems to observe the live traffic stream without injecting latency into the forwarding path, enabling latency measurement and strategy analysis without a dedicated capture appliance in the forwarding path.