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MPLS标签交换是目前IP通信网络中使用广泛的一项技术,其固定的标签格式虽然大大加速了转发引擎交换速度,承载了一定的QoS信息,但其针对特殊领域、特殊用途的标准制定、实现途径却无能为力,在一定程度上制约了其更加广泛且有效的应用。从标准MPLS标签头的角度出发,分析了当前MPLS交换体制的不足,借鉴IPV6的思想,提出一种通过扩展标签头格式和转发表的方法,解决提出的MPLS扩展性问题。
MPLS label switching is a widely used technology in IP communication networks. Although its fixed label format greatly accelerates the switching speed of the forwarding engine and carries certain QoS information, it is formulated and implemented according to specific fields and special-purpose standards Paths are powerless, to a certain extent, restricted its more extensive and effective application. From the perspective of standard MPLS label header, this paper analyzes the shortcomings of the current MPLS switching system and draws lessons from the idea of IPV6 to propose a solution to the proposed MPLS scalability problem by extending the header format and forwarding table.