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Network Protection Mechanism using Spanning Tree Algorithm

Explore using spanning tree algorithm for network protection. Cover concepts, Kruskal’s and Prim's algorithms, and recovery frameworks for failure detection, correction, and reversion.

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Network Protection Mechanism using Spanning Tree Algorithm

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  1. ICE514 Concrete Mathematics Term project presentation Network Protection Mechanism using Spanning Tree Algorithm 2003. 04. 02. Kwang Hyun, Koo Yu Mi, Kim

  2. Contents • Background supporting the main idea • Spanning tree algorithm • The concept of protection in the network • Term project main idea • Expected result • Schedule

  3. Spanning tree algorithm • Spanning tree for a graph G • Subgraph of G that contains every vertex of G and is a tree • DFS (depth first search) or BFS (breadth first search) to create a spanning tree • Minimum cost spanning tree • Spanning tree of least cost • Algorithms : greedy method • Kruskal • Prim • Sollin

  4. 10 12 14 0 0 28 16 1 10 1 10 16 14 18 16 14 6 2 5 6 2 5 22 24 25 25 18 12 4 12 4 24 22 3 22 3 25 28 Kruskal’s algorithm 0 5 2 3 1 6 1 2 3 6 3 4 4 6 4 5 0 1

  5. Concept of protection • Recovery framework • Failure detection • Failure correction • Failure localization & isolation • Recovery • Reversion

  6. D S Concept of protection (cont.) Primary Backup • Based on pairing one working path with one backup path. • The signal is transmitted on both paths in parallel. • When the working path fails,only D node switches the connection from • working path to backup path.

  7. Term project main idea • Object : implementation protection algorithm adapting spanning tree algorithm in the network • Set up disjointed path between source node and destination node using spanning tree algorithm. One denotes working path and the other is protection path. • In the normal case, network can service using working path. When fault occurs in the network link, can service through protection path

  8. D S Unused Edge Primary Path Secondary Path Expected result

  9. Schedule

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