NVLink4 Terminology and Acronyms
The following table lists terms and acronyms used throughout the NVLink4 user documentation.
|Access NVLink||An NVLink between a GPU and an NVSwitch|
|Computer node||A server system with DGXA100 baseboard|
|GFM||Global Fabric Manager. There is one GFM per NVLink domain (cluster).|
|L1 NVSwitch||First-level NVSwitch. For example, the NVSwitches on compute nodes.|
|L2 NVSwitch||Second-level NVSwitch. The NVSwitches in the NVLink Rack Switch are L2.|
|LFM||Local Fabric Manager. Runs on each compute node to manage NVSwitches. Only the GFM directly communicates with LFMs.|
|NVLink domain/cluster||A set of nodes that can communicate over NVLink|
|NVOS||NVIDIA Networking OS, formerly known as MLNX-OS|
|OSFP Port/NVLink||Octal Small Form Factor Pluggable based NVLink ports attached to NVIDIA GPU baseboard|
|Rack switch node||A rack switch with 2 NVSwitch devices with multiple OSFP ports|
|Trunk NVLink||An NVLink between 2 NVSwitch devices|
For more information, refer to the Fabric Manager User Guide.