The following charts show sfptpd performance when
the network adapter is configured in PTP slave mode to a third party Grandmaster clock
via a network switch. In this example Ethernet interface 4 (eth4) is the interface
receiving PTP packets and sfptpd is disciplining the
system clock.
The charts below identify sfptpd performance
when two PTP network adapters are present and configured in a bonded interface in a PTP
slave server. Arrows on the chart identify what happens during bond failover and
failback events.
The upper chart shows the consistent offset of the server’s system clock from the clock on the active port during repeated bond failover and failback events. For the same period, the middle chart shows the offset of the active adapter clock from the external grandmaster during the failover and failback of the bonded ports. For the same period the lower chart shows the offset of the server system clock from the external PTP master clock.
