This paper proposed a scalable architecture of IPv4-IPv6 internetworking gateway based on EZchip 10Gbps network processor NP-1c. The Application Layer Gateway(ALG) of control plane can be upgraded without needing to modify the data forwarding plane.A SIP ALG of 3GPP IMS(IP Multimedia Subsystem)was implemented and tested under real China Next Generation Internet(CNGI) network environment.IPv4 SIP UEs can communicate with IPv6 SIP UEs through the gateway.
Abstract Mobile IPv6-based IPv6 Global Anycasting(MGA) proposed using Mobile IPv6 mechanisms to
implement global IPv6 anycasting. The Correspondent Anycast Responder(CAR) selection in MGA can not
assure that the selected Anycast Responder(AR) is the closest one to the Home Anycast Agent(HAA). We
propose using round trip time(RTT) between HAA and the AR to select the CAR. Analysis and testing shows that
this mechanism can achieve shorter response time than that in MGA.
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