The RIB construction

• ISIS adds the following paths to the RIB:

  • 1.1.1.1/32: OIF = S0 or S3 with Metric 6 (6+0)
  • 2.0.0.1/30: OIF = S0 or S3 with Metric 8 (6+2)

3

3

3

3

A: oif null, Cost 0

S0

S3

B: oif so, Cost 3

C: oif so & s3, Cost 6

D: oif s3, Cost 3

Lo0: 1.1.1.1/32, C=0

Pos1: 2.0.0.1/30, C=2

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