Computing shortest path in a graph, Computer Networking

Assignment Help:

While calculating shortest path, first we assume graph presentation of network at every node then we use Djikstra's algorithm to calculate shortest path from every node to other one. Then extract next hop information from giving path information and add next hop information into routing tables.

WEIGHTED GRAPH

Djikstra's algorithm will add weights on edges in graph. The shortest path is then the path with minimum total weight. It could be noticed that the shortest path is not necessarily with fewest edges. For example as given in the figure below:

2244_weighted graph.png

The minimum path in the diagram from node 2 to node 6 is 2 to 3 and 3 to 6 as this way has the minimum weight so it is the shortest path.

DISTANCE MATRICS

Weights on graph nodes denote cost of traversing edge. This cost can be in time, hop or dollars counting (weight == 1). The resulting shortest path can not have fewest hops.


Related Discussions:- Computing shortest path in a graph

What are the five major network services, What are the five major network s...

What are the five major network services? Major Network Services are: a. File Services b. Message Services c.  Print Services  d.  Application Services e.  Datab

Data communication and networking, i) Identify at least two items at every ...

i) Identify at least two items at every site that needs upgrading [2 Marks] ii) What type of WAN connection (link) might you use to connect the three sites to each other?

What is protocol data unit, What is Protocol Data Unit? The data unit i...

What is Protocol Data Unit? The data unit in the LLC level is known as the protocol data unit (PDU). The PDU having of four fields a destination service access point (DSAP), a

Ethernet cable, what is max length of cable I can use

what is max length of cable I can use

What are the drawbacks of arcnet, What are the drawbacks of ARCNet? Her...

What are the drawbacks of ARCNet? Here are some drawbacks of ARCNet: 1.  Standard ARCNet is very slow (2.5 Mb/s). It is almost seven times slower than Token Ring. 2.  ARC

Mobile interent technology, Question 3:4 By experimentation, work out the l...

Question 3:4 By experimentation, work out the lowest SNR, under which 4 users can si- multaneously communicate, without error, via this system. For SNR, simply report the largest v

Cells vs packets, ATM designers select cells over packets because of the fo...

ATM designers select cells over packets because of the following facts: Cells are fixed length and memory management for them is easy. Handling variable length packets tends

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd