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Update README.

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Mention SACKs, don't spend many words on junk no one wants,
reword everything, and reorder the features so that the ones
with a higher cost/benefit ratio are higher up.
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whitequark 2017-09-22 19:37:49 +00:00
parent c33aedf7c6
commit 15bd9896f1
1 changed files with 12 additions and 12 deletions
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README.md
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@ -57,19 +57,19 @@ The TCP protocol is supported over IPv4. Server and client sockets are supported
* Header checksum is generated and validated.
* Maximum segment size is negotiated.
* Multiple packets are transmitted without waiting for an acknowledgement.
* Reassembly of out-of-order segments is supported, with no more than 4 missing sequence ranges.
* Lost packets are retransmitted with exponential backoff, starting at a fixed delay of 100 ms.
* Sending keep-alive packets is supported, with a configurable interval.
* Connection, retransmission and keep-alive timeouts are supported, with a configurable duration.
* After arriving at the TIME-WAIT state, sockets close after a fixed delay of 10 s.
* Urgent pointer is **not** supported; any urgent octets will be received alongside data octets.
* Silly window syndrome avoidance is **not** supported for either transmission or reception.
* Congestion control is **not** implemented.
* Delayed acknowledgements are **not** implemented.
* Nagle's algorithm is **not** implemented.
* Reassembly of out-of-order segments is supported, with no more than 4 gaps in sequence space.
* Keep-alive packets may be sent at a configurable interval.
* Retransmission timeout starts at a fixed interval of 100 ms and doubles every time.
* Time-wait timeout has a fixed interval of 10 s.
* User timeout has a configurable interval.
* Window scaling is **not** supported, and the maximum buffer size is 65536.
* Timestamping (used in round-trip time measurement and protection against wrapped sequences)
is **not** supported.
* Selective acknowledgements are **not** implemented.
* Delayed acknowledgements are **not** implemented.
* Silly window syndrome avoidance is **not** implemented.
* Nagle's algorithm is **not** implemented.
* Congestion control is **not** implemented.
* Timestamping is **not** supported.
* Urgent pointer is **ignored**.
## Installation