I/O Card Interfaces 
2 I/O Card Interfaces
Figure 2: PCI Connection
2.1I/O Interfaces
The ConnectX-2 I/O card is VPI-capable, supporting InfiniBand or Ethernet on either port. The following table shows the supported configurations.
Table 4 - VPI Support
Port 1 | Port 2 | Supported |
| | |
IB | IB | supported |
| | |
IB | EN | supported |
| | |
EN | IB | not supported |
| | |
EN | EN | supported |
| | |
2.1.1InfiniBand Interface
The ConnectX-2 VPI adapter card is compliant with the InfiniBand Architecture Specification, Release 1.2.1. It has two compliant QSFP InfiniBand ports, with four Tx/Rx pairs of SerDes con- nected to QSFP connectors.
2.1.2Ethernet Interface
The ConnectX® -2 VPI adapter card is compliant with the IEEE Std 802.3ae Specification. Each port can be connected to a 10 Gigabit Ethernet switch through the use of QSFP to SFP+ hybrid cables.
