Homework SourseInput Output Interface VPI VCI Interface i A Virtual Circuit
Input Output Interface VPI VCI Interface
i) A Virtual Circuit ATM switch has the following switch translation table
Suppose an ATM cell is received on Interface 1 with VPI=19 and VCI = 8.
On what output interface is the cell transmitted and with what VPI and VCI values?
(ii) A Virtual Path ATM switch has the following switch translation table
Suppose an ATM cell is received on Interface 1 with VPI=19 and VCI = 8.
On what output interface is the cell transmitted and with what VPI and VCI values.
| input | Output | ||||
| interface | VP1 | VCI | interface | VPI | VCI |
| 1 | 3 | 4 | 1 | 5 | 12 |
| 1 | 7 | 6 | 1 | 7 | 13 |
| 1 | 19 | 8 | 2 | 5 | 18 |
| 1 | 5 | 11 | 2 | 8 | 4 |
Solution
Phase angle (deg) Phase-Laufzeit
(Time shift) Time distinction Laufzeit-Phase
Frequency Frequenz-Phase
= c / f and c = 343 m/s at 20°C.
Calculation between point in radians (rad), the time shift or time delay t,
and the frequency f is:
Phase angle (rad) Bogen-Laufzeit
\"Bogen\" means that \"radians\". (Time shift) Time distinction Laufzeit-Bogenwinkel
Frequency Frequenz-Bogenwinkel
Time = path length / speed of sound
