家用路由器认识（Home router awareness）.docVIP

家用路由器认识（Home router awareness） Main performance parameters of the router: Since its inception in the early 80s, the router has developed gradually, and its use and performance have been greatly expanded and enhanced. The current router has more and more functions, such as DDNS, NAT, VPN and so on. For some first router users, see these terms simply look mumbo-jumbo, how to buy a router to play its due performance? The author will through some of the common performance parameters of router to give the reader an introduction, hoping to help the user first router. CPU Like computers, routers also contain a central processor, or CPU, which is the central component of a router. Different series, different types of routers, the CPU is not the same. The processor has a direct impact on the router throughput (routing table lookup time) and routing computing ability (affecting the network routing convergence time). In general, the processor clocked at 100M or less belongs to a lower frequency, so that the low-end router for ordinary families and SOHO users. 100M to 200M belong to medium frequency, more than 200M belong to higher frequency, suitable for Internet cafes, small and medium-sized enterprise users and large enterprises branches. Memory The router may have a variety of memory, the router is generally used in read-only memory (ROM), random access memory (RAM), nonvolatile memory (NVRAM) and flash memory (Flash) of four different types of memory, each memory in different ways to assist the work of the router. Memory is used as storage configuration, router operating system, routing protocol software and so on. In low and medium routers, routing tables may be stored in memory. Generally speaking, the greater the memory of the router, the better, but efficient algorithms and excellent software can also greatly save memory. Memory can be done in units of Byte (bytes), or Bit (bit) units. The difference between the two tones is 8 times the capacity (1Byte = 8 Bit). The cu