Virtual Circuit Switching
•Explicit connection setup (and tear-down) phase
•Subsequence packets follow same circuit
•Sometimes called connection-oriented
model
0
1
3
2
0
1
3
2
0
1
3
2
5
11
4
7
Switch 3
Host B
Switch 2
Host A
Switch 1
•Analogy: phone
call
•Each switch maintains a VC table