FVR420v is that the chivalrous promise faces the medium-and-large-sized Internet cafe, district, school, enterprise to design, high-order multi-functional broadband access products of new generation. The latest router pronunciation of the chivalrous promise reports an emergency and asks for help or increased vigilance in the function, the first sociable fire wall route in the world, speak the network question to you immediately, help the network management to solve the network faced most frequently and lose the line, attacks, and congested problem. Adopt high-efficient Intel IXP 533 processor frequently mainly, transmit speed 200Mbps bidirectionally, can support 100, 000 on-line to count, it is 500 computers that the taking machine is measured biggest, on-line stability and efficiency of operating are high. Build high specification 64MB large capacity memory inside, high load is steady in operation it is reliable for a long time . Build mouth of 4 WAN port inside, offers enterprise elasticity to dispose and use, the bandwidth grows up the space large. Support the hardware to join the mirror image of ports, the bandwidth of four outside line is assembled, load balancing, circuit are aided fully. The telecommunication network open tactics route of three generations of chivalrous promise, can assemble and do the elasticity of load balancing to use with ISP circuit bandwidth; Shunt the open circuit of the telecommunication network automatically, solve and step the limited problem of the network bandwidth. Smart QoS bandwidth management, the potent fire wall and fictitious regional network VLAN function, offer user elasticity to dispose and use, can improve network efficiency, increase protective capacities of the network and security. The design of way that the pair of power will go back, it is weatherable and resisting the unstable ability of the power to optimize. Standard cabinet size of 19 inches, the iron shell aesthetic in appearance dispels the heat well, durable in use.