Arista DCS-7135LB-48Y4C-F | 7135LB 48-Port 25G Switch, VU9P-3 FPGA, 4x 100G QSFP28

Q: What makes the DCS-7135LB-48Y4C-F suitable for ultra-low latency applications?
A: The switch features Layer 1+ switching with latencies as low as 5 nanoseconds and integrates a Xilinx VU9P-3 FPGA for programmable, deterministic packet processing. It's optimized for high-frequency trading, financial services, and other latency-sensitive workloads requiring microsecond-level precision.

Q: Can I develop custom FPGA applications for this switch?
A: Yes, Arista provides comprehensive FPGA Development Kits (FDK) and Vitis Development Kits (VDK) that enable complete access to the FPGA resources. The platform supports custom application development while running Arista EOS for seamless network integration and management.

Q: What Layer 1+ features does this switch support?
A: The switch offers dynamic patching, port tapping, one-to-many replication, media conversion, packet statistics, precise timestamping with MetaWatch, and configurable crosspoint switching. These features enable flexible topology management and network monitoring without introducing additional latency.

Q: Is this switch compatible with existing 10G infrastructure?
A: Yes, all 48 SFP28 ports support backward compatibility with 10G and 1G SFP modules, allowing seamless migration from existing 10G networks to 25G while maintaining interoperability with legacy equipment.

Q: What is the difference between the -F and -R airflow variants?
A: The DCS-7135LB-48Y4C-F features front-to-rear airflow (cold aisle intake), while the -R variant has rear-to-front airflow. Select the appropriate model based on your data center's hot aisle/cold aisle configuration to ensure optimal cooling efficiency.