Assume that a reliable delivery of data from a machine M1 to another machine M2 is provided through many intermediate machines. All the intermediate links of these machines are not prone to error such as that in the case of present day wired networks. What layer or layers (transport, network, or data link layer) one will choose to provide reliability? What layer or layers one will choose to not provide reliability? Justify with explanation for both affirmative and negative selections.

Assume that a reliable delivery of data from a machine M1 to another machine M2 is provided through many intermediate machines. All the intermediate links of these machines are not prone to error such as that in the case of present day wired networks. What layer or layers (transport, network, or data link layer) one will choose to provide reliability? What layer or layers one will choose to not provide reliability? Justify with explanation for both affirmative and negative selections.

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter6: System Integration And Performance

Section: Chapter Questions

Problem 12RQ

See similar textbooks

Similar questions

Assume that there is a shared connection (for example, an Ethernet bus) with a speed of 1 Mbps. How much time (in microseconds) is required to send a frame with a length of 1000 bits over this link?
It is obvious that a router or a switch needs to do searching to find information in the corresponding table. The searching in a routing table for a datagram network is based on the destination address; the searching in a switching table in a virtual circuit network is based on the combination of incoming port and incoming VCI. Explain the reason and define how these tables must be ordered (sorted) based on these values.
Assume that a reliable delivery of data from a machine M1 to another machine M2 is provided through many intermediate machines. All the intermediate links of these machines are not prone to error such as that in the case of present day wired networks. What layer or layers (transport, network, or data link layer) one will choose to provide reliability? What layer or layers one will choose to not provide reliability? Justify with explanation for both affirmative and negative selections.
The minimum number of columns in a datagram network is two; the minimum number of columns in a virtual-circuit network is four. Can you explain the reason? Is the difference related to the type of addresses carried in the packets of each network?
A 1-km-long, 10-Mbps CSMA/CD LAN (i.e., Classic Ethernet)has a propagation speed of 200 m/μsec (i.e., how fast the radio signal moves on the link). Thereare no repeaters in this system. Data frames are 512 bits long, including 480 bits of payload (i.e.,effective data) and 32 bits of overhead (e.g., header, checksum, and other overhead fields). Everydata frame should be confirmed by a 64-bit ACK frame. We assume the sender needs to use onecontention slot to seize the channel before transmitting the data frame, and the receiver needsto use one contention slot to seize the channel before transmitting the ACK frame. Answer thefollowing questions: a. What is the minimum length of a contention slot in μsec? b. What is the effective data rate for the sender to send one data frame? Assume that there areno collisions. Show the calculation c. What would be the impact on the total delay and the effective data rate if we used a longerdata payload size in the data frame? Given one application…
2. Consider a bus-topology network with five stations. A reservation access method is used. Each station has infinite data to transmit. Each reservation slot has 10 microseconds (note that 1 microsecond = 106 second). For each station, one data transmission sends 1000 bits. The transmission rate over the medium is 10 Mbps. For a station, which is its throughput (in unit "Mbps")?
What assumptions have been made in Elementary data link protocols?
We define data link layer communication efficiency as the ratio between a packet transmission time and the sum of the the packet transmission time-and twice of its, propagation time. A channel has a bit rate of 10 kbps and a propagation delay of 10,000 micro-second. For what range of frame sizes (in number of bit) does stop-and-wait give an efficiency of at most 60%?
We define data link layer communication efficiency as the ratio between a packet transmission time and the sum of the the packet transmission time and twice of its propagation time. A channel has a bit rate of 10 kbps and a propagation delay of 10,000 micro-second. For what range of frame sizes (in number of bit) does stop-and-wait give an efficiency of at most 90%?
Problem 3 Consider the problem of deciding whether to implement a virtual- circuit or a datagram network. Assume a network protocol that allows the system to operate as either a virtual circuit network or a datagram network. That is, its packet header format is specified such that it incorporates both a VCI (Virtual Circuit Identifier) and an arbitrary source/destination addresses. When operating as a virtual circuit, it requires a 4-byte header. When operating as a datagram network, it requires a 40-byte header. Assume that there are 4 hops from source to destination, and that a set up or tear down request packet is 80 bytes (including the header). The total message length is 4096 bytes, the data rate is 9600 bps on all links and the packet size is 256 bytes (including the header). i) If we operate in the datagram mode, how long does it take for the first packet to reach the destination? If we operate in virtual-circuit mode, how long does it take for the first packet to reach the…
Write an essay on ODVA implementations. Your Essay should have at least four (4) pages (double spaced) and should briefly describe each of the four (4) data link infrastructures over which CIP can operate, and include a table where you compare each data link protocol with a set of at least 5 characteristics (compatibilities with IOT, message size, cost of minimal implementation, etc.) and mark which characteristics is/are present on each infrastructure for CIP. Comment on why these DL infrastructure alternatives.
An entry in the switching table of a virtual-circuit network is normally created during the setup phase and deleted during the teardown phase. In other words, the entries in this type of network reflect the current connections, the activity in the network. In contrast, the entries in a routing table of a datagram network do not depend on the current connections; they show the configuration of the network and how any packet should be routed to a final destination. The entries may remain the same even if there is no activity in the network. The routing tables, however, are updated if there are changes in the network. Can you explain the reason for these two different characteristics? Can we say that a virtual-circuit is a connection oriented network and a datagram network is a connectionless network because of the above characteristics?