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Asked By : Janet Bartlett
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For the network shown in Fig 1 give global distance vector t
For the network shown in Fig. give global distancevector tables when
a Each node knows only the distances to its immediate neighbors.
b Each node has reported the information it had in the preceding step to its
immediate neighbors.
c Step b happens a second time.
1. For the network shown in Fig. 1 give global distance-vector tables when a. Each node knows only the distances to its immediate neighbors. b. Each node has reported the information it had in the preceding step to its. immediate neighbors. c. Step (b) happens a second time. O——© 6 Fall ” ©O—©® Fig. 1
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0
Process for Computing Distance-Vector Tables:
- Each node maintains a distance-vector table containing its distance estimates to all other nodes in the network.
- Initially, each node knows only the distances to its immediate neighbors.
- Nodes exchange their distance-vector tables with their neighbors.
- Based on the received information, each node updates its distance estimates for all destinations.
- Steps 3 and 4 are repeated until no further changes occur in the distance estimates.
In this topology:
- A is connected to B and D.
- B is connected to A, E, and F.
- C is connected to D, E, and F.
- D is connected to A and C.
- E is connected to B, C, and F.
- F is connected to B, C, and E.
a. Each node knows only the distances to its immediate neighbors:
| Node | Neighbors | Distances |
|---|---|---|
| A | B, D | 8, 3 |
| B | A, E, F | 8, 1, 2 |
| C | D, E, F | 3, 2, 2 |
| D | A, C | 3, 6 |
| E | B, C, F | 1, 2, 2 |
| F | B, C, E | 2, 2, 2 |
b. Each node has reported the information it had in the preceding step to its immediate neighbors: This would be the same as the initial step since each node only knows about its immediate neighbors.
c. Step (b) happens a second time: Again, this would be the same as the initial step since there have been no changes to the information exchanged between nodes.
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