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23 lis 2022 · This routine simulates the NTP receive and packet procedures for a reference clock. This provides a mechanism in which the ordinary NTP filter, selection and combining algorithms can be used to suppress misbehaving radios and to mitigate between them when more than one is available for backup.
- Reference Clock Commands and Options
Reference clocks are identified by a syntactically correct...
- Reference Clock Commands and Options
The NTP package contains a background program (daemon or service) which synchronizes the computer's system time to one or more external reference time sources which can be either other devices on the network, or a radio clock which is connected to the computer.
23 lis 2022 · Figure 1 shows two NTP time formats, a 64-bit timestamp format and a 128-bit datestamp format. The datestamp format is used internally, while the timestamp format is used in packet headers exchanged between clients and servers.
23 mar 2023 · Reference clocks are identified by a syntactically correct but invalid IP address, in order to distinguish them from ordinary NTP peers. These addresses are of the form 127.127.t.u, where t is an integer denoting the clock type and u indicates the unit number in the range 0-3.
There are three NTP time formats, a 128-bit date format, a 64-bit timestamp format, and a 32-bit short format, as shown in Figure 3. The 128-bit date format is used where sufficient storage and word size are available.
By convention, reference clock drivers are named in the form refclock_xxxx.c, where xxxx is a unique string. Each driver is assigned a unique type number, long-form driver name, short-form driver name, and device name. The existing assignments are in the Reference Clock Drivers page and its dependencies.
By convention, reference clock drivers are named in the form refclock_xxxx.c, where xxxx is a unique string. Each driver is assigned a unique type number, long-form driver name, short-form driver name, and device name.
