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Authors:
James F. Kurose, Keith W. Ross
Chapter:
The Network Layer
Exercise:
Review
Question:5 | ISBN:9780132856201 | Edition: 6

Question

Describe some hypothetical services that the network layer can provide to a single packet. Do the same for a flow of packets. Are any of your hypothetical services provided by the Internet’s network layer? Are any provided by ATM’s CBR service model? Are any provided by ATM’s ABR service model?

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Answer

The following network layers can be provide hypothetical services are:

  • Guaranteed delivery
  • Guaranteed delivery with bounded delay

The following network layers can be provide flow of packets are:

  • In-order packet delivery
  • Guaranteed minimal bandwidth
  • Guaranteed maximum jitter
  • Security services

The following ATM’s CBR(Constant Bit Rate)  service model provides:

  • Guaranteed delivery of video and audio traffic at a constant bit rate

The following ATM’s ABR(Available Bit Rate) service model provides:

  • In-order deliviery of packets.
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