Forwarding Ambiguity
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Forwarding Ambiguity. M Vinod Kumar Dr. Abhay Karandikar. Example of Adjacent ISP Domain- 1. 1. 3. 4. 5. 2. 6. 7. Example of Adjacent ISP Domain- 2. 1. 3. 4. 5. 2. 6. Example of Adjacent ISP Domain- 3. 1. SPG3. 3. 4. 5. 2. SPG2. 6. SPG1.

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Forwarding Ambiguity

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Forwarding ambiguity

Forwarding Ambiguity

M Vinod Kumar

Dr. Abhay Karandikar


Example of adjacent isp domain 1

Example of Adjacent ISP Domain- 1

1

3

4

5

2

6

7


Example of adjacent isp domain 2

Example of Adjacent ISP Domain- 2

1

3

4

5

2

6


Example of adjacent isp domain 3

Example of Adjacent ISP Domain- 3

1

SPG3

3

4

5

2

SPG2

6

SPG1

There are three Segment Protection Groups (SPGs):

SPG1: Primary-IS 3-4 (violet color) and backup-IS 3-5-4 (pink color)

SPG2: Primary-IS 4-5 (green color) and backup-IS 4-6-5 (gray color)

SPG3: Primary-IS 6-4-5 (brown color) and backup-IS 6-5 (yellow color)

SPG3 solves forwarding ambiguity problem when violet segment fails


Questions

Questions?


Thank you

Thank You


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