Packet-switched problem of networking

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Consider an application that transmits data at a steady rate (for example, the
sender generates an N-bit unit of data every k time units, where k is small and
fixed). Also, when such an application starts, it will continue running for a
relatively long period of time.
Suppose that a packet-switched network is used and the only traffic in
this network comes from such applications as described above. Furthermore,
assume that the sum of the application data rates is less than the
capacities of each and every link. Is some form of congestion control
needed? Why?
Expect for your reply.

Posted 18-Oct-13 15:57pm

Zhenghongdi-09

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Comments

Sergey Alexandrovich Kryukov 18-Oct-13 22:10pm

What do you mean by "congestion control"?
—SA

Nelek 18-Oct-13 22:14pm

I think he means something as traffic control in rush hour.

Zhenghongdi-09 18-Oct-13 22:19pm

Uh huh

Nelek 18-Oct-13 22:23pm

??

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Saffcer · Answer 1 · 2013-10-19T03:56:00

Given such generous link capacities, the network needs no congestion control mechanism. In the worst (most potentially congested) case, all the applications simultaneously transmit over one or more particular network links. However, since each link offers sufficient bandwidth to handle the sum of all of the applications' data rates, no congestion (very little queuing) will occur.