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Interfaces
The systems support the following interfaces:
•
Data interfaces - InfiniBand
•
10/100/1000 MbE RJ45 management interface(s)
•
USB
•
RS232 Console port
•
I²C interface
•
Reset button
•
Status and Port LEDs
In order to review the full configuration options matrix, refer
Fans.
Data Interfaces
The data interfaces use QSFP28 connectors. The full list of interfaces per system is provided
in Speed and Switching
Each QSFP28 port can be connected with QSFP28 cable or connector for 40/56/100 Gb/s. The
system offers High Power class 4 transceivers support in all ports.
Speed
InfiniBand speed is auto-adjusted by the infiniBand protocol. NVIDIA systems support QDR/FDR10/
FDR/EDR InfiniBand.
•
FDR10 is a non-standard InfiniBand data rate, where each lane of a 4X port runs a bit rate of
10.3125 Gb/s with a 64b/66b encoding, resulting in an effective bandwidth of 40 Gb/s. FDR10
supports 20% more bandwidth over QDR due to better encoding rate.
•
FDR is an InfiniBand data rate, where each lane of a 4X port runs a bit rate of 14.0625 Gb/s
with 64b/66b encoding, resulting in an effective bandwidth of 56.25 Gb/s.
•
EDR is an InfiniBand data rate, where each lane of a 4X port runs a bit rate of 25 Gb/s with
64b/66b encoding, resulting in an effective bandwidth of 100 Gb/s.
I2C/RS232 (Console)
The port labeled "Console
used for initial configuration and debugging. Upon first installation of the system, you need to
connect a PC to this interface and configure network parameters for remote connections. Refer
to Configuring Network
•
This interface is not found in externally managed systems.
•
Apart from the initial configuration, the I²C interface is made exclusively for
debugging and troubleshooting. Only FAEs are authorized to connect through it.
Capabilities.
" is an RS232 serial port on the back side of the chassis that is
Attributes to view the full procedure.
to Management Interfaces, PSUs and
32
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