NVIDIA ConnectX-4 InfiniBand/Ethernet Adapter Cards User Manual
NVIDIA ConnectX-4 InfiniBand_Ethernet Adapter Cards User Manual

Interfaces

The network ports of the ConnectX®-4 adapter cards are compliant with the InfiniBand Architecture Specification, Release 1.3. InfiniBand traffic is transmitted through the cards' QSFP28 connectors.

The network ports of the ConnectX®-4 adapter card are compliant with the IEEE 802.3 Ethernet standards listed in Features and Benefits. Ethernet traffic is transmitted through the cards' QSFP28 connectors.

The ConnectX®-4 adapter card supports PCI Express Gen 3.0 (1.1 and 2.0 compatible) through an x8 or x16 edge connector. The device can be either a master initiating the PCI Express bus operations, or a subordinateresponding to PCI bus operations. The following lists PCIe interface features:

  • PCIe 3.0 compliant, 2.0 and 1.1 compatible

  • 2.5, 5.0, or 8.0, link rate x8/x16

  • Auto-negotiates to x16, x8, x4, x2, or x1

  • Support for MSI/MSI-X mechanisms

There is one bi-color I/O LED per port to indicate link status. LED behavior is described below for Ethernet and InfiniBand port configurations.

Physical and Logical Link Indications - Ethernet Protocol:

LED Color and State

Description

Off

A link has not been established

Beacon command for locating the adapter card

1Hz blinking Yellow

Error

4Hz blinking Yellow Indicates an error with the link. The error can be one of the following:

Error Type

Description

LED Behavior

I2C

I2C access to the networking ports fails

Blinks until error is fixed

Over-current

Over-current condition of the networking ports

Blinks until error is fixed

Solid green

Indicates a valid link with no active traffic

Blinking green

Indicates a valid logical link with active traffic


Physical and Logical Link Indications - InfiniBand Protocol:

LED Color and State

Description

Off

A physical link has not been established

Solid amber

Indicates an active physical link

Beacon command for locating the adapter card

1Hz blinking Yellow

Error

4Hz blinking Yellow Indicates an error with the link. The error can be one of the following:

Error Type

Description

LED Behavior

I2C

I2C access to the networking ports fails

Blinks until error is fixed

Over-current

Over-current condition of the networking ports

Blinks until error is fixed

Solid green

Indicates a valid logical (data activity) link with no active traffic

Blinking green

Indicates a valid logical link with active traffic

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