| Rev | Author | # | Line |
|---|---|---|---|
| 1 | PerryLorier | 1 | [Acronym] for __S__elective __A__cknowledgement. |
| 2 | |||
| 3 | [TCP] by "default" can only [ACK] up until a certain point, so if it loses just one packet, it must ask for a retransmit for all the packets after that. [SACK] means TCP can ask for just that packet to be retransmitted, or in fact multiple sets of missing sequences of packets. see [TCP] and RFC:2018 |
