| ackWindowSize | signed integer | FTFW acknowledgement window size. |
| checksum | boolean | Verify checksums on state replication messages. |
| interface | string matching [A-Za-z0-9][A-Za-z0-9_.:-]* | Dedicated replication network interface. |
| localAddress | string matching [0-9]{1,3}(\.[0-9]{1,3}){3} | Local IPv4 address of the dedicated replication link. |
| peerAddress | string matching [0-9]{1,3}(\.[0-9]{1,3}){3} | Peer IPv4 address receiving replicated state. |
| port | TCP/UDP port number (1-65535) | UDP replication port. |
| resendQueueSize | signed integer | Maximum FTFW resend queue length. |