The combination of full concatenation of the SONET payload and ATM bandwidth management also gives carriers the ability to offer new data services,such as virtual private network services at native LAN speeds.

• SONET负荷的全部连入与ATM带宽管理的结合也给予了电话公司提供新型数据服务的能力，如以本地局域网的速度提供虚拟专网服务。