Allied Telesis AT-2911SX Gigabit Ethernet Card

This Allied Telesis AT-2911SX Gigabit Ethernet Card is designed for high-performance, reliable networking in desktops, workstations, servers, and SMB environments. Built to optimize data throughput and reduce CPU load, it delivers a sturdy, future‑proof upgrade path for systems that demand steady 1 GbE performance, even under heavy traffic. The AT-2911SX focuses on practical productivity gains—supporting jumbo frames for large data transfers, robust offload features to accelerate common networking tasks, and broad compatibility with leading operating systems and virtualization platforms. Whether you’re consolidating virtual machines, performing backups, or streaming high-definition content, this PCIe NIC is engineered to help you maximize network efficiency without rewriting your infrastructure.

• Jumbo frames for large, time‑critical payloads: Normal Ethernet frames max out at 1548 bytes, which can create additional processing overhead and latency for large data transmissions. The AT-2911SX supports jumbo frames, enabling larger payloads to traverse the network with fewer interrupts and reduced CPU utilization. This translates into higher sustained throughput for backups, media streaming, large file transfers, and virtualization workloads where data is moved in bulk. By enabling jumbo frames, you can optimize bandwidth usage on busy networks and improve efficiency in storage arrays, hypervisors, and data centers without changing your core switch fabric.
• Broad OS and virtualization compatibility: Designed to work across a wide range of operating systems, this card integrates smoothly with Windows, Linux, and common virtualization environments such as VMware and Hyper-V. Drivers and support utilities are provided or readily available, ensuring quick deployment in mixed environments. This broad compatibility minimizes the hassle of deployment across heterogeneous systems, making it an ideal upgrade for mixed networks that require a single, dependable 1 GbE NIC for diverse workloads.
• Advanced offloads and network efficiency: The AT-2911SX includes hardware-assisted features that help offload busy networking tasks from the host CPU. Checksum offload, large send offload (LSO), and interrupt moderation contribute to lower CPU overhead and more consistent throughput. These capabilities are especially beneficial in busy servers and desktops that run multiple I/O-intensive applications, helping to maintain responsive performance during peak loads and reducing the likelihood of congestion during high-bandwidth transfers.
• Simple, flexible PCIe installation: This Ethernet card is built for straightforward installation in standard PCIe slots found in modern desktops and servers. Once seated, it presents as a standard 1 GbE interface, enabling quick integration into existing networks without complicated reconfiguration. The compact form-factor fits a variety of chassis layouts, and it supports standard networking workflows, from basic connectivity to more advanced configurations that leverage VLANs and Quality of Service (QoS) policies.
• Reliable, scalable connectivity for growing networks: The AT-2911SX is designed to provide reliable, consistent performance as network demands evolve. The card supports essential features for enterprise and SMB environments, including VLAN tagging to segment traffic, robust physical layer behavior for stable links, and compatibility with modern network stacks. This makes it a practical upgrade for servers hosting virtual machines, departmental file services, or multi-user workstations that require dependable 1 GbE performance with room to grow into more demanding workloads.

Technical Details of Allied Telesis AT-2911SX Gigabit Ethernet Card

• Product: Allied Telesis AT-2911SX Gigabit Ethernet Card
• Interface: PCI Express (PCIe) adapter for modern motherboards and servers
• Ports: 1 x Gigabit Ethernet interface (RJ-45)
• Max Speed: 1 Gbps Ethernet performance under typical conditions
• Jumbo Frames: Supported (up to 9 KB payloads, subject to switch and network path compatibility)
• Offloads: Checksum offload and large send offload (LSO) to reduce host CPU utilization
• Traffic Management: Supports VLAN tagging and basic QoS/traffic segregation in supported environments
• Compatibility: Designed to work across major Windows and Linux distributions and common virtualization platforms
• Form Factor: Standard PCIe card suitable for a wide range of desktop and server chassis

How to Install Allied Telesis AT-2911SX Gigabit Ethernet Card

• Power down your computer or server and unplug it from the power source. Open the chassis panel to access the motherboard and available PCIe slots.
• Identify a vacant PCIe slot that matches the card’s interface (PCIe x1 or higher). Remove the slot cover if necessary to accommodate the card’s rear I/O.
• Gently insert the AT-2911SX into the PCIe slot, ensuring the connector seats firmly. Use a mounting screw to secure the card to the chassis once seated.
• Reconnect any cables or antennas as required by your system and close the chassis. Reattach power and boot the system.
• Install or update the driver package for the AT-2911SX from Allied Telesis or your operating system’s driver repository. Follow on-screen prompts to complete the installation, then reboot if prompted.
• Configure network settings in your operating system or hypervisor, enabling jumbo frame support if your network stack and switches are configured to handle larger frames. Create or apply VLANs and QoS policies as needed for your environment.
• Test connectivity with a basic ping test and then perform throughput testing to verify the NIC is operating at expected speeds. Validate jumbo frame operation by sending large frames between compatible devices in your network, ensuring that switches along the path support jumbo frames and are configured accordingly.

Frequently asked questions

• What is the Allied Telesis AT-2911SX? It is a Gigabit Ethernet PCIe network adapter designed to provide reliable 1 GbE connectivity with features like jumbo frames and basic offloads to improve performance in desktops, servers, and virtualization environments.
• Does it support jumbo frames? Yes. The AT-2911SX supports jumbo frames, which can enhance throughput for large data transfers when used in networks that support larger frame sizes.
• Is it compatible with Windows and Linux? Yes. The adapter is designed to work with major Windows and Linux distributions, and it is commonly supported in virtualization platforms such as VMware and Hyper-V with appropriate drivers.
• Can I use VLAN tagging with this NIC? Yes. The card supports VLAN tagging, enabling traffic segmentation and improved network management in complex environments.
• How do I install this card? Install the card in a PCIe slot, install the driver, and configure your network settings. Ensure switches in the path support jumbo frames if you plan to use them, and adjust any VLAN or QoS settings as needed for optimal performance.