Convergence in the Real World
1
customer
peer
2
3
4
5
X
Longest path: 3 4 5 2 1
Possible paths for node 3:
2 1 x
4 5 2 1 x
Possible paths for node 4:
3 2 1 x
5 2 1 x
Hierarchy eliminates some states
Tier 1?
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