High speed routing search system based on content addressable memory
A technology of addressing memory and static memory, applied in the network field, can solve the problems of complex process, low route search rate, small application scope, etc., and achieve the effect of low delay
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[0028] figure 1 It is a structural block diagram of the high-speed route search system of the present invention, which is composed of the following four parts:
[0029] The route search coprocessor is a field programmable gate array (FPGA) chip. It is the core component of the present invention and the control center of the entire system. It provides three external interfaces: A is the central processing unit (CPU). ) Interface, B is the destination IP address receiving interface, and C is the forwarding information sending interface. It receives the destination address of the IP packet through the destination IP address receiving interface, receives the route refresh command from the routing protocol through the central processing unit (CPU) interface, and controls the content addressable memory (CAM) and synchronous static memory (SSRAM) for routing Refresh and search, and then send forwarding information through the forwarding information sending interface.
[0030] The conte...
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