NFD

Develop a procedure to change forwarding strategy of a namespace at runtime.

Steps:

1. if the new strategy equals the old effective strategy, abort these steps
2. traverse the NameTree entries under the namespace. For each NameTree entry:
   • if the NameTree entry is a subtree covered by another explicitly set strategy, skip this subtree
   • visit PIT entries and their In/OutRecords, Measurements entry attached on the NameTree, clear the StrategyInfo on those entities
3. set new strategy on the StrategyChoice entry

Note: Every strategy MUST be prepared to see an entity without its StrategyInfo.