Irányítási hurok (loop)

• Example 1

  • F detects that link to G has failed
  • F sets distance to G to infinity and sends update t o A
  • A sets distance to G to infinity since it uses F to reach G
  • A receives periodic update from C with 2-hop path to G
  • A sets distance to G to 3 and sends update to F
  • F decides it can reach G in 4 hops via A

• Example 2

  • link from A to E fails
  • A advertises distance of infinity to E
  • B and C advertise a distance of 2 to E
  • B decides it can reach E in 3 hops; advertises this to A
  • A decides it can read E in 4 hops; advertises this to C
  • C decides that it can reach E in 5 hops…

Notes: