Connection setup ,s 3rd important function in some network architectures: ATM, frame relay, X25 before datagrams flow, two end hosts and intervening routers establish virtual connection routers get involved network vs transport layer connection service: network: between two hosts(may also involve intervening routers in case of Vcs) transport: between two processes Network Layer 4-7Network Layer 4-7 Connection setup ❖ 3rd important function in some network architectures: ▪ ATM, frame relay, X.25 ❖ before datagrams flow, two end hosts and intervening routers establish virtual connection ▪ routers get involved ❖ network vs transport layer connection service: ▪ network: between two hosts (may also involve intervening routers in case of VCs) ▪ transport: between two processes