shouldbeq931@gmail.com said: > I run PTP on a Raspberry Pi using its onboard USB connected NIC, and onboard > NICs on HP and Dell servers, I see +- 5 microsoconds jitter in the one way > delay across 4 fanless HP switches, ... Could you please say more? USB 2 has a 125 microsecond polling interval. Is that averaging over a batch? If so, how many? ... Have you seen any hanging bridges? -- These are my opinions. I hate spam.