orolia.com EdgeSync Manual rev 1 | 57
can operate as a Stratum-1 NTP server to provide of this time. In this regard, Stratum-1 NTP server is
the same as SNTP server.
EdgeSync can operate as a PTP grandmaster or as a NTP Stratum-1 server, by getting time reference
from GNSS and distributing that over the network to PTP slaves or NTP clients. If SNTP is enabled,
then EdgeSync can service both, PTP slaves as well as NTP clients.
Figure 29
Support of PTP slaves and NTP clients
SNTP server implementation of EdgeSync as per the specification in RFC 4330 - Simple Network Time
Protocol (SNTP) Version 4 for IPv4, IPv6 and OSI.
8. Network Architecture, Deployment
Considerations
Network Operator’s or Carrier’s perspective
The diagram below shows the carrier’s perspective of the network with a view of the synchronization
requirements. The left side of the drawing is more on the customer/applications side which require
synchronization while the core of the network is on the right. Traditionally, from TDM world to packet
world, the synchronization flow is hierarchical, starting from the core and propagating down to the end-
points.
Slave
Client