Peer Byzantine Replication Limitations
Limited scalability due to multiple all-peer exchange.
Strong connectivity is required.
- 2f+1 (out of 3f+1) to allow progress and f+1 to get an answer.
- Partitions are a real issue.
- Clients depend on remote information.
- Bad news: Provably optimal.
- We need to pay something to get something else.
Construct consistent total order.
Focus is solely on replica protection.