Arista 7135V Series

The Arista 7135V advances Arista's ultra-low-latency Layer 1+ switching onto a new AMD Versal HBM FPGA architecture, combining a single 25G crosspoint matrix switch with the high-bandwidth memory access that the Versal HBM device brings to the platform. The single-chip crosspoint approach eliminates multi-hop signal paths within the switch fabric, providing a shorter and more predictable electrical path between source and destination ports, reducing the deterministic latency contribution of the switch itself.

AMD Versal HBM FPGA devices integrate the crosspoint switch, application logic, and high-bandwidth memory in a single component, reducing board-level complexity relative to multi-chip designs. For trading infrastructure where board layout and PCB trace length affect signal integrity at 25G speeds, the single-chip approach reduces the variables that contribute to tail latency in the nanosecond range, enabling the device's latency contribution to be more precisely characterized and reported.

With 48 SFP28 server ports and 4 QSFP28 uplinks (the same port map as the 7135LB), the 7135V fits into existing rack plans for next-generation trading platform deployments, preserving cabling and rack infrastructure investments when upgrading. The 7135V targets the application segment that has exhausted the latency headroom of the prior FPGA generation and requires the additional determinism that the new Versal HBM single-chip architecture provides.