bypass功能介绍及分析（Introduction and analysis of bypass function）.docVIP

bypass功能介绍及分析（Introduction and analysis of bypass function） Bypass function introduction and analysis, what is the Bypass network security equipment is generally used in between two or more networks, such as between intranet and Internet, the application of network security devices within the network packets through his will to carry on the analysis, to determine whether the threat exists, after processing according to the routing rules the packet is forwarded. If the network security equipment malfunction, such as power outages or after the crash, all the segments connected by this equipment has lost contact with each other, this time if the requirements of each network also need each other in a connected state, so we must use Bypass. Bypas as the name suggests, is bypass function that can be triggered by a specific state (power or crash) so that the two network no longer through the system of network security equipment, and direct physical conduction. So after the Bypass, after the failure of network security equipment, which can make the connection in this device on the network are mutually communicated, of course, this time the network equipment is no longer on the network packet processing. The following diagram shows that the working mode of Bypass. On the left is the normal working state of the equipment, the two network packet processing and then spread through the application software. The equipment Bypass conduction state, application equipment no longer for processing network packets. The normal operation of the equipment status at the time of normal work, the indicator light. Fault, Bypass conduction Note: the card status indicator can display the Bypass state and normal state, Bypass state indicator card card is not bright. Two, Bypass application: Bypass classification is generally in accordance with the control mode or called trigger points, can be divided into the following 1 ways, through a power trigger. This way, no equipment is generally in the c