Network security devices are generally applied between two or more networks, for example, between an internal network and an external network. The application programs within network security devices will analyze the network packets passing through them to determine whether there are threats. After processing, the packets will be forwarded according to certain routing rules. However, if this network security device fails, such as a power outage or a crash, all the network segments connected to this device will lose contact with each other. At this time, if it is required that each network still needs to be in a connected state, then Bypass must come into play.

During the software testing process, bypass code may appear. When testing software that is not fully developed, some functions may not be completed yet, which will result in errors. Through bypass code, these errors can be ignored and skipped so that the testing of other functions can continue.

1. Support the intelligent switching of various gateway devices (such as firewalls, IDP, UTM, Intrusion Prevention System (IPS), spam gateways, antivirus gateways, dedicated DDoS devices, dedicated logical isolation devices in various fields, etc.), and provide standard development interfaces (supporting various system devices such as Windows/Linux/BSD/Unix/Solaris, etc.);
2. Pure hardware switching with short switching time and no impact on the data transmission rate;
3. Customizable switching critical selection points;
4. Support multiple switching methods: automatic switching or manual software switching;
5. Ensure the security of its own device and automatically enable direct connection in case of failure;
6. Indicator light and sound switching alarm notification functions;
7. Support multi-interface automatic switching;
8. Transparent mode, and it does not need its own IP address;
9. Plug and play without affecting the network structure;
10. 1U standard industrial-grade chassis design with a Mean Time Between Failure (MTBF) of more than 40,000 hours;
11. Can be applied to various stages such as gateway device maintenance, upgrading, program debugging, and device testing to avoid short-term network interruptions;
12. Support customized single-mode or multi-mode fiber optic interfaces.