Referring to the previous problem, once router I d learns about x it will put an entry (x, f) in its forwarding table.
a) Will I be equal to I1 or 12 for this entry? Explain why in one sentence.
b) Now suppose that there is a physical link between AS2 and AS4, shown by the dotted line. Suppose router Id learns that x is accessible via AS2 as well as via AS3. Will I be set to I1 or 12? Explain why in one sentence.
c) Now suppose there is another AS, called ASS, which lies on the path between AS2 and AS4 (not shown in diagram). Suppose router Id learns that x is accessible via AS2 ASS AS4 as well as via AS3 AS4. Will I be set to I1 or I2? Explain why in one sentence.