Intel IXF1104 manual Jumbo Packet Support, Speed, Duplex, Copper Auto-Negotiation

Models: IXF1104

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Intel® IXF1104 4-Port Gigabit Ethernet Media Access Controller

by the user. The RGMII interface supports operation at 10/100/1000 Mbps when a full-duplex link is established, and supports 10/100 Mbps when a half-duplex link is established. The GMII interface only supports a 1000 Mbps full-duplex link.

5.1.5.1Speed

The copper MAC supports 10 Mbps, 100 Mbps, and 1000 Mbps. All required speed adjustments, clocks, etc., are supplied by the MAC. The operating speed of the MAC is programmable through the “MAC IF Mode and RGMII Speed ($ Port_Index + 0x10)" (MAC_IF_Mode). The IXF1104 MAC speed setting must be programmed by the system software to match the speed of the attached PHY for proper IXF1104 MAC operation.

Note: When the IXF1104 MAC is configured to use the GMII interface, the only mode of operation that is supported is 1000 Mbps full-duplex.

If 10/100 Mbps operation is required in either full-duplex or half-duplex, the IXF1104 MAC must be configured to use the RGMII interface.

5.1.5.2Duplex

The MAC supports full-duplex or half-duplex depending on the line-side interface that is configured by the “MAC IF Mode and RGMII Speed ($ Port_Index + 0x10)" (MAC_IF_Mode). The duplex of the MAC is set in the “Desired Duplex ($ Port_Index + 0x02)” on page 163. The IXF1104 MAC duplex setting must be programmed by the system software to match the attached PHY duplex for proper IXF1104 MAC operation.

5.1.5.3Copper Auto-Negotiation

In the copper MAC, auto-negotiation and all other controls of the PHY devices are achieved through the MDIO interface, and are independent of the MAC controller. See Section 5.5, “MDIO Control and Interface” on page 99 for further operation details.

Note: In copper mode, auto-negotiation is accomplished by the attached PHY, not the IXF1104 MAC. Thus, the IXF1104 MAC does not automatically configure the MAC or other blocks in the device to be consistent with attached PHY auto-negotiation results. This must be accomplished by the user and system software.

5.1.6Jumbo Packet Support

The IXF1104 MAC supports jumbo frames. The jumbo frame length is dependent on the application and the IXF1104 MAC design is optimized for a 9.6 KB jumbo frame length. Larger lengths can be programmed, but limited system performance may lead to data loss during certain flow-control conditions

The value programmed into the“Max Frame Size (Addr: Port_Index + 0x0F)" determines the maximum length frame size the MAC can receive or transmit without activating any error counters, and without truncation.

The“Max Frame Size (Addr: Port_Index + 0x0F)" bits 13:0 set the frame length. The default value programmed into this register is 0x05EE (1518). The value is internally adjusted by +4 if the frame has a VLAN tag. The overall programmable maximum is 0x3FFF or 16383 bytes.

Datasheet

78

Document Number: 278757

Revision Number: 009

Revision Date: 27-Oct-2005

Page 78
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Intel IXF1104 manual Jumbo Packet Support, Speed, Duplex, Copper Auto-Negotiation

IXF1104 specifications

The Intel IXF1104 is a cutting-edge Network Interface Controller (NIC) designed to meet the needs of high-speed communication in modern networking environments. As the demand for bandwidth-intensive applications continues to grow, Intel's IXF1104 is engineered to deliver exceptional performance, reliability, and scalability, making it an ideal choice for data centers and enterprise networks.

One of the main features of the IXF1104 is its support for high-speed Ethernet connectivity, providing up to 100 Gbps throughput. This capability allows organizations to handle large amounts of data traffic efficiently, accommodating everything from cloud computing to big data analytics. The NIC utilizes advanced packet processing technology which ensures minimal latency, enhancing the overall user experience.

The IXF1104 is built on a robust architecture that integrates Intel's latest processing technologies. It incorporates a multi-core processing engine that allows for parallel processing of network packets, improving the handling of simultaneous network requests. This architecture also supports offloading features, freeing up CPU resources for other critical tasks, which optimizes system performance.

In terms of technologies, the IXF1104 supports a variety of standards including Ethernet and Fiber Channel, making it versatile across different networking environments. Its compatibility with industry-standard networking protocols ensures that it can easily integrate into existing frameworks, facilitating seamless upgrades and expansions.

Another significant characteristic of the IXF1104 is its energy efficiency. With Intel’s focus on sustainability, this NIC is designed to consume less power relative to its performance output, thereby reducing overall operational costs for organizations. It employs dynamic power management features that adjust power usage based on demand, which is especially beneficial in large-scale deployments.

Additionally, security features are woven into the IXF1104 design, protecting sensitive data from potential threats. Hardware-based security functions, including encryption capabilities and secure boot processes, ensure that the NIC can safeguard data integrity against unauthorized access.

Overall, the Intel IXF1104 stands out in the crowded NIC market by offering high-performance capabilities, energy efficiency, and robust security features. Its combination of advanced technologies and characteristics positions it as a strategic asset for modern networks, empowering organizations to achieve their connectivity and performance goals in an increasingly data-driven world.