V-Link Router: from architectural point of view, the router can be divided into the first generation of single-bus single-CPU structure of the router, the second generation single-bus structure of the main router from the CPU, the third generation of single-bus structure of symmetric multi-CPU router; fourth generation multi-bus multi-CPU structure Router, the fifth generation routers shared memory structure, the sixth generation crossbar switch architecture, routers and router-based cluster system and other types. Exchange switch can use a variety of different techniques. So far the most used technology is the bus exchange switches, cross switches and shared memory. The simplest use of a bus switch to connect all input and output ports shortcomings, the bus switch is its exchange capacity is limited to a shared bus arbitration overhead brought by the capacity of the bus as well. Crossbar providing multiple data paths through the switch, having an N × N crosspoint switch cross may be considered to have 2N bus. If a cross is closed, the data input bus is available on the output bus, otherwise unavailable. Crossing point is closed and opened by the scheduler to control commercial wifi join, so the scheduler limits the switching speed of the switch. Business in the shared memory where the good wifi router, incoming packets are stored in shared memory in the exchange package is only a pointer to the commercial wifi, which increases the switching capacity, but commercial wifi settings, switching speed limited by memory access speed. Although the memory capacity to double every 18 months, but the memory access time is only reduced by 5% per year, which is the exchange of a shared memory limitations inherent in the switch. V-Link router: the first one: interface types include routers support the interface types, reflecting the versatility of the router. Common interface types are: Universal Serial Interface (via cable converts RS 232 DTE / DCE interfaces, V.35 DTE / DCE interfaces, X.21 DTE / DCE interfaces, RS 449 DTE / DCE interface and the EIA530 DTE interfaces?? etc.), 10M Ethernet, Fast Ethernet interfaces, 10/100 adaptive Ethernet interfaces, Gigabit Ethernet interfaces, ATM interfaces (2M, 25M, 155M, 633M, etc.), POS interfaces (155M, 622M, etc.) Token ring interfaces, FDDI interfaces, E1 / T1 interfaces, E3 / T3 interfaces, ISDN interface. Second: the number of slots available to the user of the index refers to the number of slot modular router, in addition to CPU board, a clock board and other necessary system board and / or system board dedicated slots outside users can use. According to the index, and the user board port densities can calculate the maximum number of ports supported by the router. Third: CPU Whether in the low-end routers or high-end routers, CPU is the heart of the router. Usually in the low-end routers, CPU is responsible for the exchange of routing information, routing table lookup and forwarding packets. In the router, CPU's ability to directly affect the throughput of the router (routing table lookup time), and routing computing power (influence network routing convergence time). In high-end routers, packet forwarding and lookup table is usually done by the ASIC chip, CPU only achieve routing protocol, routing and distribution routing table calculation. The development of technology, the router a lot of work can be implemented in hardware (ASIC). CPU performance does not fully reflect the router performance. Router performance reflected by the router throughput, delay and routing computing power and other indicators. A router is a connect multiple networks or network equipment segment, it will be different networks or network segments of data information between a "translation" to enable them to each other, "read" to understand each other's data, so as to constitute a more large networks. There are two typical router function, that is, data path functions and control functions. Data channel features include forwarding decision, forwarding, and output data link scheduling, etc., usually done by the hardware; control software to achieve general, including the exchange of information between adjacent routers, system configuration, system management. Commercial wifi join, commercial wifi, Anhui Hefei, Anhui Technology provided by the Technology Development Co., Ltd. Hefei Anhui Technology Development Co., Ltd. (www.vshinetek.com/)(www.vshinetek.com) strong, credible, in Hefei of network communications products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Anhui Technology into the brilliant and you work for a better future!