Multi-port server Nic solution in Bypass Mode

PCI Express, with four-port gigabit connections providing higher network bandwidth
Using a four-port Gigabit server Nic on any server, especially on Intrusion Prevention servers, can demonstrate significant advantages. The four-port PCI Express (PCIe) server Nic can provide four network connections from a single server slot, so that other server slots can be retained for more applications. Multiple Gigabit ports can increase network bandwidth through a variety of technologies, including link or port grouping and network segmentation.
In intrusion prevention server applications, at least two ports are required to support online operations on the intrusion prevention server: one port, "external port", provides external connections to the network or network segment. All traffic from external ports will be blocked by intrusion, and the intrusion will first stop the server for analysis, the traffic that passes the check is transmitted to the internal network through the intrusion prevention server's second port, "internal port.

Intel PRO/1000 PT and PF 4-port bypass server NICs have four ports: Two "external ports" and two corresponding "internal ports ". In this way, the intrusion can prevent the server from providing dual-gigabit network connections for two links or network segments at the same time. As shown in figure 1, the intrusion prevention server receives incoming traffic from the two routers and then transmits the inspected traffic to the two working group switches.

To ensure full availability of Gigabit bandwidth, Intel PRO/1000 PT and PF quad-port bypass server NICs use a PCIe structure instead of a PCI or PCI-X bus structure. The PCIe interface is an exclusive, point-to-point serial bus architecture, different from the bus structure shared and parallel with PCI or PCI-X. Each bus channel provides 2.5 Gbit/s (Gbps) one-way bandwidth. Intel PRO/1000 PT and PF 4-port bypass server NICs provide four PCIe channels (PCIe * 4), equivalent to four times the bus speed of one PCIe channel.

At the same time, the PCIe channel is bidirectional: one sending channel and one receiving channel allow both sending and receiving to be performed simultaneously. In contrast, PCI and PCI-X can only be sent or received at a specific point in time, and a sending process must wait until the receiving process ends, resulting in latency. This delay will not occur when PCIe is used.

Support for intel? I/O acceleration technology makes network data transmission more effective
Intel? I/O acceleration is an upgraded platform technology that solves multiple problems that cause server I/O bottlenecks and does not need to change existing or future applications.ProgramAnd has good application prospects. When it is applied to servers on Intel Xeon dual-core processors, it provides a high-speed, scalable, and high-reliability network connection, so that network data can be transmitted more effectively. With more efficient data transmission and seamless expansion of system overhead and multiple network ports, the energy of Intel Xeon dual-core processor is fully released, improving the response time of network applications.

Intel PRO/1000 PT and PF 4-port bypass server Nic support newly developed intel? I/O acceleration technology. Intel? I/O acceleration supports header and payload separation and interrupt adjustment. Header separation separates TCP/IP packet headers from the Server Load balancer to perform faster operations on independent and parallel channels. Interrupt adjustment is to combine several interruptions on the NIC and apply for one-time interruption from the cpu so that the CPU can process more data packets at a time. Both header separation and interrupt adjustment allow the NIC to process data packets more effectively.

When Intel PRO/1000 PT and PF 4-port bypass server Nic, and support Intel? This data throughput can be further enhanced when I/O acceleration is used by Intel Xeon dual-core processor servers.

Summary
Intel PRO/1000 PT and PF 4-port bypass server NICs are designed to meet the needs of online functional servers. It has a bypass mode with automatic fault Insurance, ensuring online connectivity; it has multi-Gigabit ports and provides higher network bandwidth; it uses a faster third-generation PCIe serial bus structure to replace PCI and PCI-X structures to ensure greater throughput; it uses Intel? I/O acceleration technology further improves system performance and reduces system overhead. These are crucial for Intrusion Prevention servers and other online functional servers, ensuring their efficient operation and wide application.

This is a post about hardware. When building network security, you must start with hardware and software. Only two aspects play a role at the same time, and the network security is higher. Otherwise, I think any unilateral defense is futile and cannot withstand hacker attacks.