The following table lists terms used in the guide and their definitions.
| Term | Definition |
|---|---|
| AN, AN/LT |
Auto-negotiation / Link Training. Sets the speed of an Ethernet link. |
| ARP |
Address Resolution Protocol. Maps IP addresses to MAC addresses. |
| BASE-R FEC |
A type of Forward Error Correction also known as Firecode. |
| CPU |
Central Processing Unit. |
| CTPIO |
Cut Through Programmed Input/Output. TX packets are streamed directly from the PCIe interface to the adapter port to deliver lowest TX latency. |
| DAC cable |
Direct Attach Copper cable. |
| DDR |
Double Data Rate memory. Transfers data on rising and falling edges of the clock. |
| DSFP |
Dual Small Form-factor Pluggable. A 2-channel (dual) network transceiver design that is compatible with SFP+/ SFP28 transceivers. See the DSFP MSA website. |
| ECC |
Error Correction Code. |
| EFCT |
The native interface for an X3522. |
| FCS |
Frame Check Sequence. Error-detecting code added to an Ethernet frame. |
| FEC |
Forward Error Correction. Employs redundancy in channel coding as a technique used to reduce bit errors. |
| FPGA |
Field Programmable Gate Array. A semiconductor device that is based around a matrix of configurable logic blocks connected via programmable interconnects. |
| IRQ |
Interrupt Request. |
| LAN |
Local Area Network. |
| MCDI |
Management CPU Driver Interface. Passes messages and events between the host driver and the X3522 firmware. |
| MTU |
Maximum Transmission Unit. The maximum packet size that can be transmitted. |
| NC-SI |
Network Controller Sideband Interface. An electrical interface and protocol for out-of-band system management. |
| NIC |
Network Interface Controller. |
| NUMA |
Non-Uniform Memory Access. A multiprocessing design where memory is local to clusters of processors. |
| Onload |
A high performance user-level network stack from AMD, which accelerates TCP and UDP network I/O. |
| PCIe |
Peripheral Component Interconnect Express. A high-speed serial bus used to connect components. |
| PF |
Physical Function. A PCIe physical device. |
| RS-FEC |
A type of Forward Error Correction also known as Reed Solomon. |
| RSS |
Receive Side Scaling. Enables packet receive-processing to scale with the number of available CPU cores. |
| RX |
Receive. |
| SECDED |
Single Error Correction / Double Error Detection. Error processing that can correct a 1-bit error, and detect a 2-bit error. |
| SFP |
Small Form-factor Pluggable. A single-channel network transceiver design. |
| SMBus |
System Management Bus. A single-ended two-wire bus for lightweight communication between system components. |
| TSO |
TCP Segmentation Offload. Offloads the splitting of outgoing TCP data into packets to the adapter. |
| TX |
Transmit. |
| UEFI |
Unified Extensible Firmware Interface. Provides support for disk-less booting to a target operating system. |
| UUID |
Universally Unique Identifier. A 128-bit identifier that is unique and persistent. |
| XCUX35 |
The FPGA used on an X3522. |