TimeKeeper client with PTP and NTP
Below is an example of clients syncing to sources in this order:
- PTP (multicast) to a local GM on domain 0
- NTP to a nearby NTP server
- PTP (hybrid) to a local GM on domain 1 on a specific NIC
- PTP (unicast) to a remote GM on domain 3
Network wise this might look similar to:
![](/docs/img/docs/recipes/client_ptpntp.png)
A timekeeper.conf file reflecting this would look like:
# Get PTP locally from Grandmaster A (domain 0, full multicast)
SOURCE0() { PTPCLIENTVERSION=2; PTPDOMAIN=0; }
# Get NTP locally from Grandmaster A
SOURCE1() { NTPSERVER=grandmaster_a_hostname; }
# Get PTP locally from Grandmaster B (domain 1, hybrid mode)
SOURCE2() { PTPCLIENTVERSION=2; PTPDOMAIN=1; UNICAST=1; }
# Get PTP from remote Grandmaster C (domain 2, full unicast)
SOURCE3() { PTPCLIENTVERSION=2; PTPDOMAIN=3; PTPSERVER=grandmaster_c_hostname; }