This paper describes the AAL2 protocol stack, AAL2-CP packet format and its applications, then analyze the application of ATM AAL2 Trunking in narrowband networks, finally presents some convergence solutions based on AAL.

• 介绍了ATM AAL2的协议结构、分组格式及其应用，并对ATM AAL2 Trunking在窄带网络中的应用做了较详尽的分析，最后给出了基于AAL的网络融合方案。