An overview of multilayer switching technology in mordern communication networks is presented in this paper based on the introduction of traditional switching technologies,including tag switching,IP swit - ching,ARIS and MPLS.

• 在介绍传统交换技术的基础上,根据技术发展的趋势详细讨论了目前通信网络中常见的一些多层交换技术,包括标记交换、IP交换、ARIS和MPLS技术等等。