Interaction Ptp And Sntp - Hirschmann MS30, Power MICE, MACH 4000, OCTOPUS User Manual

Synchronizing the System Time of the

7.4 Interaction PTP and SNTP

According to PTP and SNTP, both protocols are permitted to coexist in one
network. However, since both protocols influence the system time of the
device, situations may occur in which both protocols compete with each
other.
Note: Configure the devices in such a way that each device receives the
system time exclusively from one source.
If you want the switch to receive the system time using PTP, enter the
external server address 0.0.0.0, and do not accept any SNTP broadcasts
when performing the SNTP client configuration.
If you want the switch to receive the system time using SNTP, make sure that
the best clock is connected to the SNTP server. Thus, both protocols receive
the time from the same server. The example
plication.
GPS
NTP-
Server
SNTP
149.218.112.0
Fig. 32: Example of the coexistence of PTP and SNTP.
Layer 2 Enhanced with Layer 2 Professional
Release 1.0 10/05
PLC
SNTP
PTP
SNTP Client SNTP Server
SNTP Server
PTP
149.218.112.1 149.218.112.2
7.4 Interaction PTP and SNTP
(see Fig. 32)
SNTP-Client
PTP
SNTP Server
PTP PTP
149.218.112.3
shows such an ap-
SNTP
SNTP-Client
99