The NVIDIA MSB7800-ES2F is a fixed-configuration InfiniBand switch built on the Switch-IB 2 ASIC, engineered to meet the extreme bandwidth and latency demands of high-performance computing (HPC) and AI workloads. With 36 QSFP28 ports running at 100Gb/s EDR, it provides a non-blocking switching fabric that scales from small research clusters to large enterprise data centers.
This externally managed variant (MSB7800-ES2F) is optimized for environments where a centralized Subnet Manager (like OpenSM or NVIDIA UFM) handles fabric control, delivering low power consumption (122W typical) and high-density 1U design. It includes NVIDIA SHARP technology to accelerate MPI collective operations, freeing CPU resources for computation and reducing job completion times.
NVIDIA Scalable Hierarchical Aggregation and Reduction Protocol (SHARP) offloads collective operations from the CPU to the switch network, eliminating multiple data passes between endpoints. This reduces MPI operation time and frees CPU resources for computation.
Switch‑IB 2 ASIC delivers advanced features: adaptive routing, congestion control, VL2VL mapping, and port mirroring. The x86 dual‑core Intel Celeron runs MLNX‑OS for complete chassis management.
Is this switch internally managed?
No, MSB7800-ES2F is externally managed. Requires a host‑based Subnet Manager (OpenSM / UFM).
Can I change the airflow direction?
No, P2C (Front‑to‑Rear) is fixed. Choose -ES2R for C2P airflow.
Does it support SHARP?
Yes, with Switch‑IB 2 firmware ≥ 15.1300.0126 and UFM configuration.
What cables are compatible?
QSFP28 passive copper, active optical, and optical modules.

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