NVIDIA Mellanox Switch-IB 2 MSB7570-E EDR InfiniBand Spine Blade – 36-Port 100Gb/s for CS7500 Series Director Switches

Add fabric bandwidth to a Mellanox director switch, with SHARP acceleration.

The NVIDIA Mellanox MSB7570-E is a Switch-IB 2 EDR 100Gb/s InfiniBand spine blade for CS7500-series modular director switches. It provides the internal spine layer that links leaf blades, with SHARP support for HPC, AI and large storage clusters.

How the MSB7570-E Fits Into a Modular InfiniBand Director

Modular InfiniBand directors are built from two blade types: leaf blades that face the servers and spine blades that connect the leaf blades through the chassis backplane. Replacing a failed blade or expanding a chassis requires the correct blade generation for the chassis.

The MSB7570-E is the Switch-IB 2 spine blade for the CS7500, CS7510 and CS7520 directors. Adding spine blades raises the internal bandwidth available between leaf blades, so the fabric stays non-blocking as ports are added.

Because it uses Switch-IB 2 silicon, the blade supports SHARP (Scalable Hierarchical Aggregation and Reduction Protocol), which performs collective operations inside the network and reduces the load on compute nodes.

SHARP Acceleration for HPC and AI

SHARP-capable blades let MPI and NCCL collective operations, such as all-reduce, run inside the switch. This cuts the amount of data crossing the network and shortens job run times for simulation and deep learning workloads.

Hot-Swappable Field Replacement

The blade installs from the rear (spine) side of the chassis and can be replaced without powering down the director, keeping the rest of the fabric online during maintenance or upgrades.

How to Install the MSB7570-E

1. Confirm the chassis model (CS7500, CS7510 or CS7520) and that the management software release supports Switch-IB 2 blades.
2. Wear an ESD strap, remove the blank or failed blade, and slide the MSB7570-E into the correct spine slot until the ejectors lock.
3. Verify the blade is detected and powered from the management module CLI or UFM.
4. Check port and fabric status, enable SHARP if required, and save the configuration.