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.