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Things that probably need refinement Architecture document Use of bundle expiration time as (sole) mechanism for routing loop recovery Must be reconciled with intentional replication for robustness Recent discussion of a bundle node in the network adding an optional header analogous to a VIA field to identify loops, etc. May need more than one of these fields Is this better than a replay cache? Using multipath routing & forwarding to improve reliability/ decrease latency How to remove duplicates once we decide they’re no longer needed? Endpoint identifiers: What is the relation between administrative identifiers across regions? Is there constancy that can be assumed? In what circumstances? Congestion and flow control (utility of economic models?) Ability to use forward erasure coding in conjunction with multipath routing / forwarding How and when to trust assertions of security made by lower layers |