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TOPIC: regarding algos of routing

regarding algos of routing 8 years 1 month ago #27398

  • marora80
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hello there
i have just studied about the dijkastra and bellman ford algorithms from a book (author:tanambum") but i havent get good understanding about how it works and what are the relevant consideration it will take at the time of creating metrices
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Re: regarding algos of routing 8 years 1 month ago #27399

  • S0lo
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It's not easy to explain those details in plain English, you need to use visuals, But the basics are, For dijkstra, Given a graph of nodes and weighted edges, and a Starting node. The "dijkstra shortest path" algorithm finds all shortest paths from the starting node to all other nodes. Here is an online applet that will help you understand how it works, You can draw your own graph with it:


Bellman–Ford algorithm also computes the shortest paths in a weighted graph but with the advantage that some of the edge weights can be negative). Dijkstra's algorithm solves the same problem with a lower running time, but requires edge weights to be non-negative. So, Bellman–Ford is often used only when there are negative edge weights. Here is an applet for it:

Bellman–Ford (choose it from the list):
Studying CCNP...

Ammar Muqaddas
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