Communications Channel
How is a
request sent over the Internet using a communications channel?
Next
p. 489 Fig. 9-34
Step 1. The sending device requests information
using either
a physical transmission media
or a wireless transmission media.
a physical transmission media
or a wireless transmission media.
Step 2. When the request leaves
the ISP, it travels over T1 lines, microwave stations, earth-based stations, and communications satellites until it reaches the Internet backbone.
the ISP, it travels over T1 lines, microwave stations, earth-based stations, and communications satellites until it reaches the Internet backbone.
Step 3. The request travels
over T3 lines along the Internet backbone.
Step 4. The Request travels
over T1 lines until it reaches the destination network server.
