InfiniBand Interface
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.
Ethernet QSFP28 Interface
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.
PCI Express Interface
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 subordinate responding 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
LED Interface
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:
| |||||||||
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:
| |||||||||
Solid green | Indicates a valid logical (data activity) link with no active traffic | |||||||||
Blinking green | Indicates a valid logical link with active traffic |
