4 over 6 TUNNEL TRANSITION TECHNOLOGY

This technology was put forward for the first time in the world, which promoted the establishment of IETF international standards.

4 over 6 transition of backbone network based on core routing protocol.

  • Each prefix level mapping mechanism can isolate heterogeneous routes and avoid route explosion.

  • Based on 4 over 6 routing, a mesh dynamic tunnel is established to realize transparent data transmission.

  • Only upgrade the core network edge equipment to protect the existing network investment.

4 over 6 transition of access network based on Dynamic Host Configuration Protocol.

  • Dynamic address assignment across heterogeneous networks.

  • IP Address multiplex based on port segment parameters.

  • Network side NAT is migrated to user side to avoid core network state explosion.

  • Maintain the end-to-end characteristics and support various service applications.

Large scale application has been carried out.

  • CNGI- CERNET2 backbone network, IPv6 Campus Network of 100 universities.

  • China Telecom and China Unicom test network.

  • Sohu, Sina, PetroChina, State Grid Corporation of China and other industries.

Awards

  • 2013 Second prize of National Technological Invention Award.

  • 2012 First prize of China Institute of Communications.

  • 2012 First prize of China Communications Standards Association Science and Technology Award.