Can the amount of the outflow be reasonably estimated?
Assignment No. 02 Semester: Spring 2020
CS206: Introduction to Network Design & Analysis Total Marks: 20
Due Date: 15th June 2020
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To enhance the learning capabilities of the students about:
• Packet fragmentation at link layer
• Determining shortest path tree based on cost analysis
Consider a system in an ethernet based local area network is connected with a server through Internet.
Assume that a datagram of 30000 Bytes (including the IP header) arrives at the router of local network. The router forwards this datagram to the link over the local network which needs to be fragmented before passing it to the link-layer. In the context of mentioned scenario, answer the following questions:
Question No. 1 (A):
If the fragmentation is done with maximum transmission unit over the link layer, how many frames will be needed to carry out this datagram over the link? Write all necessary calculation steps.
Question No. 1 (B):
What will be the size of last frame, if all the initial frames occupy data according to the maximum capacity (MTU)?
Question No. 2:
The following diagram depicts a network of routers connected through various links (paths) having cost (weight) associated with each link. The routing algorithm determines the suitable path through the networks of routers based on the least cost. Based on the cost associated with each link, identify the shortest path for each destination router from ‘R’ and depict in the form of Shortest-Path Tree:
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