The Study And Realization Of VRRP In IPV6

The standard protocol of Internet networks available is the forth edition of IP (Internet Protocol) ,that is IPV4.For two fatal problems"the address exhausted"and"the route table exploring", It must be replaced by the next generation protocol .The sixth edition of IP ,that is IPV6,is the new next generation protocol designed by the IETF to replace the current version Internet protocol-IPV4. IPV6, which has almost infinite IP addresses and the layered address architecture, is the future standard protocol of IP.IPV4, which is now about twenty years old, is beginning to have many problems, especially for those network protocols which are running based on the IPV4,so it is important for us to amend them to fit IPV6.Recently years, most route protocol such as RIP,OSPF had been amended to fit IPV6 successfully through the respective different changing.VRRP, is an important protocol of IP protocols family, mainly provides a dynamic redundancy backup mechanism of the default next-hop. It has not had the replaced protocol in IPV6 until now. Based on the seventh edition VRRP for IPV6 draft of RFC, the paper shows various new functions of VRRP for IPV6, analyses advantages and theory foundation of the changing of the draft, and improves the VRRP state machine through a deeply analysis in it. This improvement makes the convergence time of VRRP topology less. At the end, we realize the emulation system of the new VRRP in vxworks.