Arista DCS-7260CX3-64-F | 7260X3 64-Port 100G Switch, 2x 10G SFP+, 12.8Tbps

Q: What deployment scenarios is the DCS-7260CX3-64-F best suited for?
A: This switch is optimized for data center leaf-spine architectures, top-of-rack deployments requiring high 100GbE density, high-performance computing clusters, and financial trading systems where ultra-low latency and predictable performance are critical. It excels in environments with intensive east-west traffic patterns.

Q: Can this switch support different port speeds simultaneously?
A: Yes, the QSFP28 ports support flexible speed configurations including 10G, 25G, 40G, 50G, and 100G operation simultaneously. You can configure up to 64x 100GbE, 128x 50GbE, or combinations of 10G/25G with appropriate transceivers or DAC cables.

Q: What is the significance of the 42MB shared packet buffer?
A: The 42MB dynamically allocated packet buffer intelligently absorbs traffic bursts and micro-bursts during congestion, ensuring lossless operation and predictable latency. This is twice the capacity of earlier Arista 7060X models and critical for maintaining performance under variable data center workloads.

Q: What airflow direction does the -F suffix indicate?
A: The -F suffix designates front-to-rear (front-to-back) airflow, meaning cool air is drawn in from the front and exhausted out the back. This is the standard configuration for most data center hot-aisle/cold-aisle layouts. A -R model is available for rear-to-front airflow.

Q: Does this switch support advanced layer 3 routing and SDN features?
A: Yes, running Arista EOS, the switch provides full layer 2 and layer 3 wire-speed forwarding, including BGP, OSPF, VXLAN overlay support for up to 16,000 VXLANs, 128-way ECMP, OpenFlow, and advanced telemetry features like LANZ for buffer monitoring and packet timestamping for network performance analysis.