Firewall, as a network security device applied between two or more networks, analyzes network packets to determine whether there is a threat, and handles it. The importance of network security is self-evident. Without firewalls, network security will lose a big boost, and even network information will be subject to more intensive network attacks.
      In practical applications, the main function of the firewall is to intercept unnecessary and unexpected access traffic, while the bypass network card will issue routes based on the policies configured on the network security device. During this process, if the device is powered off, the operating system is faulty, or the core components of the database firewall are frozen, the Bypass network card will use the bypass function, combined with the "watchdog" mechanism, to quickly open the hardware Bypass to re-open the network connection. Ensure that the business system returns to normal within a few seconds after an exception occurs on the firewall.

      It has to be mentioned that the firewall deployed in the network will intercept the data packets that pass through the firewall, and will only release it after confirming that it meets the policy requirements, which will have a certain impact on the network transmission efficiency.

      As a professional network card solution provider, LR-LINK has launched a series of Bypass function network cards together with Intel and Net-Swift in pursuit of more efficient, secure and stable network card solutions. This series of network cards includes from Gigabit to 10 Gigabit, from horizontal plug-in network cards to half-height PCIE network cards, from dual-port to eight-port, with complete product specifications, high stability, high compatibility, and timely supply cycle. advantage.

      Take PCIe x8 four-port dual-channel Bypass gigabit mezzanine network card (product model: LREM3500BP-4T) as an example, this is a network card independently developed based on Intel I350 main control, supports Windows, Linux, CentOS, Ubuntu, Vmware ESX and other mainstream operating systems, with strong data transmission stability.

      This network card has a dual-channel bypass function and supports three working modes: normal, disconnected and bypassed, which can ensure the smooth network and protect data information in the event of a sudden power failure of the device. In addition, in the Gigabit Ethernet link, four network ports can work in full-duplex working mode at the same time, and support network ports for aggregation to increase network traffic bandwidth or any network port for aggregation, greatly improving network performance. transmission efficiency.

      In July this year, the "Regulations on Network Data Security Management" drafted by the Cyberspace Administration of China was included in the 2022 legislative plan, and more and more countries are paying more and more attention to the construction of network security. LR-LINK adheres to the research and development concept of "be refined, specialized and strong", and constantly develops network card solutions worthy of customers' trust, and builds a "firewall" for network security.
      To choose a stable and reliable network card solution, please look for the LR-LINK brand.