-# nqptp
-Not Quite a PTP daemon, `nqptp` monitors PTP traffic. Briefly, `nqptp` monitors the times of any [PTP](https://en.wikipedia.org/wiki/Precision_Time_Protocol) clocks -- up to 32 -- it sees on ports 319 and 320. It maintains a record for each clock, identified by its Clock ID and IP. This information is provided via a [POSIX shared memory](https://pubs.opengroup.org/onlinepubs/007908799/xsh/shm_open.html) interface at `/nqptp`. Here are details of the interface:
+# nqptp -- Not Quite PTP
+The `nqptp` daemon monitors PTP traffic. Briefly, `nqptp` monitors the times of any [PTP](https://en.wikipedia.org/wiki/Precision_Time_Protocol) clocks -- up to 32 -- it sees on ports 319 and 320. It maintains a record for each clock, identified by its Clock ID and IP. This information is provided via a [POSIX shared memory](https://pubs.opengroup.org/onlinepubs/007908799/xsh/shm_open.html) interface at `/nqptp`. Here are details of the interface:
```c
struct clock_source {
char ip[64]; // the IP the clock information is coming from
* At present, `nqptp` does not take advantage of hardware timestamping.
* The daemon is Linux only, and has been developed and tested on a `systemd` Linux only.
-# Things Can Change!
+# Things Can Change
The `nqptp` daemon is under active development and, consequently, everything here can change, possibly very radically.
+
+# NQPTP is not PTP!
+`nqptp` uses a small part of the IEEE Std 1588-2008 protocol. It is not a PTP clock of any kind.