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PM42100

PAX 100xG4 Gen 4 Advanced Fabric PCIe Switch

Status: Samples Available

Features:

  • High-performance PCIe fabric connectivity to a pool of GPUs, NVMe SSDs, and other endpoints, that overcomes the limitations of PCIe tree-based topologies for rack scale multi-host systems
  • High-reliability PCIe with robust error containment, hot- and surprise-plug controllers per port, end-to-end data integrity protection, high-quality, low power SerDes
  • Multi-host sharing of SR-IOV and multifunction endpoints
  • Significant power, cost, and board space savings with support for up to 52 ports and flexible ×1, ×2, ×4, ×8, and ×16 port bifurcation with no restrictions on configuring ports as either upstream or downstream
  • PAX Software Development Kit (SDK)
  • Comprehensive diagnostics and debugging
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Device Overview

Summary

The Switchtec Gen 4 PM42100 PAX Advanced Fabric PCIe switch is a programmable, high reliability switch supporting high performance PCIe fabric connectivity to a shared pool of GPUs, NVMe, SSDs and other endpoints, multi-host sharing of single-root input/output virtualization (SR-IOV) endpoints, 100 lanes, 52 ports, and hot- and surprise-plug controllers for each port.  PAX switches features advanced error containment, comprehensive diagnostics and debug capabilities, a wide breadth of I/O interfaces, and an integrated MIPS processor. PAX switches utilize a system-on-chip architecture that optionally enables customer differentiated solutions through firmware customization and enhancements.

Applications for the PAX family include scalable multi-host systems, SR-IOV-enabled JBOFs, composable GP-GPU fabrics, disaggregated systems and rack scale architectures.

For product comparison, please consider: PM42084, PM42068, PM42052, PM42036, PM42028

Additional Features
  • High-performance PCIe fabric connectivity to a pool of GPUs, NVMe SSDs, and other endpoints, that overcomes the limitations of PCIe tree-based topologies for rack scale multi-host systems
  • High-reliability PCIe with robust error containment, hot- and surprise-plug controllers per port, end-to-end data integrity protection, high-quality, low power SerDes
  • Multi-host sharing of SR-IOV and multifunction endpoints
  • Significant power, cost, and board space savings with support for up to 52 ports and flexible ×1, ×2, ×4, ×8, and ×16 port bifurcation with no restrictions on configuring ports as either upstream or downstream
  • PAX Software Development Kit (SDK)
  • Comprehensive diagnostics and debugging
  • PCIe Fabrics and Multi-host SR-IOV Sharing
    • High-performance PCIe fabric connectivity to a pool of GPUs, NVMe SSDs, and other endpoints, that overcomes the limitations of PCIe tree-based topologies for rack scale multi-host systems
    • Multi-host sharing of SR-IOV and multifunction endpoints
    • Virtualization of entire PCIe domains and endpoints with physical and virtual functions (for example, SR-IOV NVMe SSDs)
  • High-Performance Non-blocking Switching
    • Up to 174 GBps switching capacity
    • 100-lane variant
    • Ports bifurcate to ×1*/×2/×4/×8/×16 lanes
  • Error Containment
    • Advanced error reporting (AER) on all ports
    • Downstream port containment (DPC) on all downstream ports
    • Poisoned TLP blocking
    • Completion timeout synthesis (CTS) to prevent an error state in an upstream host due to incomplete non-posted transactions
    • Hot- and surprise-plug controllers per port
    • GPIOs configurable for different cable/connector standards
  • PCIe Interfaces
    • Passive, managed, and optical cables
    • SFF-8644, SFF-8643, SFF-8639, OCuLink and other connectors
  • Diagnostics and Debug
    • Real-time eye capture
    • External loopback
    • Errors, statistics, and performance counters
  • High-Speed I/O
    • PCIe Gen 4 16 GT/s
    • Supports OCuLink cabling, CEM ×16 slots, and other interfaces
  • ChipLink Diagnostic Tools
    • Extensive debug, diagnostics, configuration, and analysis tools with an intuitive GUI
    • Access to configuration data, management capabilities, and signal integrity analysis tools (such as real-time eye capture)
  • Evaluation Kit
    • The PM42100-KIT Switchtec Gen 4 PCIe switch evaluation kit is a device evaluation environment that supports multiple interfaces including optical PCIe-compliant link training and manual PHY configuration.
  • * x1 natively on four lanes
Parametrics
Name
Value
Lanes
100
Ports
52
Hot Plug Controllers
52
Power Dissipation
29.3
Bandwidth
174

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