A. Service provider has routing control.
B. Customers control their own routing.
C. Can communicate protocols other than IP.
D. Allows them to use separate networks for IP and VPN traffic.
正确答案:参考B, C

A. Service provider has routing control.
B. Customers control their own routing.
C. Can communicate protocols other than IP.
D. Allows them to use separate networks for IP and VPN traffic.
正确答案:参考B, C