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域间路由结构面临的扩展问题直接影响了Internet用户的增长、新型技术和应用的部署。很多研究都在开发一种新型的可扩展域间路由寻址结构,目前被认为有可能得到部署的是基于封装-映射的核心-边界分离方案,该方案重用现有IPv4地址空间和扩展现有协议向后兼容现有的IPv4结构。在核心网络边界部署具有转换地址空间的特殊路由器,修改数据报文头部进行转发,避免封装所导致的问题。分析显示提出的结构可以显著地缓解现有域间路由结构的扩展压力,并且具有很好的向后兼容性。
Inter-domain routing structure is facing the expansion of a direct impact on the growth of Internet users, the deployment of new technologies and applications. Many studies are developing a new type of extensible inter-domain routing addressing architecture that is currently considered as likely to be deployed based on the encapsulation-mapping core-boundary separation scheme that reuses the existing IPv4 address space and extends the existing The protocol is backwards compatible with existing IPv4 structures. Deploy a special router with translated address space at the core network border to modify the header of the data packet for forwarding and avoid the problems caused by the encapsulation. The analysis shows that the proposed structure can significantly relieve the expansion pressure of the existing inter-domain routing structure and has good backward compatibility.