Abstract: This paper reviews simply the frame relay and MPLS technologies，according to their features，the paper discusses how they can operate together in application and affirms that they have important roles to play during the IP networking development.

摘要： 简要回顾了帧中继和多协议标记交换技术，并基于它们的特点，讨论了二者在运作中的结合，肯定了它们在IP网络发展过程中占据的重要地位。

关键词: 帧中继, 多协议标记交换, ATM, PVC, LSR, LSP, QoS

CLC Number: 

• TN919.3