| A bit is a binary digit 0 or 1 of Common data per unit |
|
| 8bit=1Byte | |
| 1KB=210B | |
| MB=210X1KB | |
| GB=210X1MB | |
| TB=210X1GB |
1. rate
| Common data rate units | |
| bit/s(b/s,bps) | |
| Kb/s=103 b/s | |
| Mb/s=103 X1Kb/s | |
| Gb/s=103 x1Mb/s | |
| Tb/s=103 x1Gb/s |
2. Broadband
| Bandwidth represents the highest data rate in a unit time from a point in the network can be passed to another point |
3. Throughput
| Certain amount of data is represented by a network (or channel interface) in the unit time |
4. Delay
| Send delay | Packet length (b) / transmission rate (b / s) | |
| Propagation delay | Letter channel length (m) / electromagnetic wave propagation velocity (m / s) | Electromagnetic wave propagation rate i 1. Free Space: 3x10 . 8 m / S 2. Copper: 2.3 x 10 . 8 m / S 3. Fiber: 2.0 x . 8 m / S |
The delay volume Broadband
6. round-trip time
7. Utilization
8. loss ratio