●●● ●●●● ●●●●● ●●●● ●●●●● 面向连接服务的实现 ●●●● Router Carrier's equipment Process Process P2 Process P1 As table C's table Es table H1:1c:1A E:1C H3 c:2A:2E:2c:2F:2 Out 虚电路子网的路由linwei@bbi.edu.cn 9 面向连接服务的实现 虚电路子网的路由