Firewall
QFX5241-64OD
Product Description
The QFX5240 line of switches meet the advanced AI data center networking requirements of large‑scale clusters. The QFX5240 line works with the automation—such as Apstra Data Center Director (formerly Juniper Apstra)—to assure daily operation in AI and ML workload training and access.
The QFX5240 line of switches:
− Deliver high-density 800GbE ports on a fixed form factor with software to provide advanced network services tuned to the specific needs of AI/ML workloads
− Are a foundation of AI networks, and their low latencies ensure fast job completion time (JCT) to speed training through high GPU utilization
− Help teams managing AI/ML environments realize improved economics
Features and benefits
AI/ML design
-
Artificial intelligence puts new challenges on compute, network, and storage solutions with large models that run in parallel across many GPUs for training. These models require fast job completion time (JCT) with minimal delays for the last GPU to finish its calculations, that is, low tail latency. Architects optimize the cluster performance through rail-optimized design (Read this HPE Juniper Networking white paper for more information about AI/ML cluster design). As model sizes and datasets continue to grow, designs must accommodate more GPUs in the cluster, requiring that the network seamlessly scale, without compromising performance, or introducing communication bottlenecks.The QFX5240 line meets the needs of these large-scale AI networks. The switch provides:− 64 ports of 800GbE on a 2U switch to reduce costs on both space and total power utilization− Choice of connectivity with both OSFP and QSFP-DD variants of 800GbE for leaf-spine connectivity− Advanced telemetry capabilities to support ECN/PFC counters− Fine-grained, load-balancing capability to handle reduced flow entropy− Automation of rail-optimized design through Apstra Data Center Director
Automation Data Center Director
-
Automation tools, such as Data Center Director, ensure the reliable setup of expansive networks with ongoing verification of the deployment along with monitoring of operations. Data Center Director delivers full day 0 through day 2+ capabilities for IP/EVPN fabrics with closed-loop assurance in the data center. Data Center Director provides a broad set of operational capabilities, with multiple built-in intent-based analytics probes, flow visibility, and analysis to ensure that the AI network is running as designed. Data Center Director provides a simple UI workflow to create custom intent-based analytics to capture, enrich, and visualize data from the AI network.MonitoringThe QFX5240 line of switches supports Junos telemetry interface, a modern telemetry streaming tool that provides performance monitoring in complex, dynamic data centers. Streaming data to a performance management system lets network administrators measure trends in link and node utilization and troubleshoot issues such as network congestion in real time.
Junos telemetry interface provides:
-
− Application visibility and performance management by provisioning sensors to collect and stream data and analyze the application and workload flow path through the network− Capacity planning and optimization by proactively detecting hotspots and monitoring latency and microbursts− Troubleshooting and root cause analysis via high‑frequency monitoring and correlating overlay and underlay networks Additionally, the Junos OS Evolved supports a robust API set to support automation through Terraform, Ansible, zero-touch provisioning (ZTP), operations and event scripts, automatic rollback, and Python scripts.