Enhancing LAN Performance

1

0.92

0.96

0.99

2

0.87

0.84

0.82

3

0.81

0.80

0.77

4

0.62

0.71

0.73

5

0.54

0.62

0.65

6

0.42

0.51

0.56

7

0.34

0.42

0.45

8

0.21

0.33

0.34

9

0.12

0.24

0.27

10

0.02

0.12

0.14

11

0.01

0.05

0.07

5.1

Assume the projected traffic is "Y" erlangs. How many ports will you need to provide customers with a level of service such that only one in eight calls encounters a busy signal?

5.2

Assuming traffic is now expected to be "X" erlangs, what number of ports should be installed to provide customers with a 1 in 100 probability of encountering a busy signal?

5.3

Assume 5 erlangs of traffic are offered to a six-port access concentrator. Use the traffic analyzer program to determine the traffic carried and traffic lost associated with each concentrator port.