NVIDIA Docs Hub NVIDIA Networking Networking Software Switch Software NVIDIA NVOS User Manual for NVLink Switches v25.02.2141 NVLink Interface

NVLink Interface

NVLink switch tray has groups of NVLink interfaces with different roles:

Role	Name Example	Purpose
Access (backplane)	acp1	Establish connectivity between switch trays and compute trays in the same rack.
Front-panel	sw1p1s1 sw<x> is the physical port number found on the front-panel p<x>s<x> is the logical port	When applicable, allow connectivity between switches from different racks.
Fabric Network Management (FNM)	fnm1	Establish connectivity between switch trays in the same rack, used for network provisioning by SDN entities (e.g., subnet manager).

Configuring and Monitoring Interfaces

NVOS provides tools to configure and monitor network interfaces, ensuring seamless connectivity and performance.

Enable/disable interfaces (all interfaces are enabled by default).

Examples:

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            admin@nvos:~$ nv set interface acp1 link state up
admin@nvos:~$ nv set interface acp1 link state down

Set interface descriptions for easier identification and management.

Example:

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            admin@nvos:~$ nv set interface acp1 description "Access-1"

Show link state, diagnostics, and counters.

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            admin@nvos:~$ nv show interface
admin@nvos:~$ nv show interface link-diagnostics
admin@nvos:~$ nv show interface acp1
admin@nvos:~$ nv show interface acp1 link counters
admin@nvos:~$ nv show interface acp1 link phy-detail

NVLink Interface Commands

NVLink Interface Commands

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NVLink Interface

Configuring and Monitoring Interfaces

NVLink Interface Commands