Hirschmann RS20 User Manual page 118

Synchronizing the System Time in the
Network
Device
PTP
Operation
Clock Mode
Preferred Master
SNTP
Operation
Client Status
External server address
Server request interval
Accept SNTP Broadcasts
Server status
Anycast destination address
VLAN ID
Anycast send interval
Table 10: Settings for the example
In the example, the left device, as an SNTP client, gets the time from the
NTP server via SNTP. The device assigns PTP clock stratum 2 (PTPv1)
or clock class 6 (PTPv2) to the time received from an NTP server. Thus
the left device becomes the reference clock for the PTP synchronization.
PTP is active for all 3 devices, thus enabling precise time synchronization
between them. As the connectable terminal devices in the example only
support SNTP, all 3 devices act as SNTP servers.
118
7.4 Interaction of PTP and SNTP
149.218.112.1 149.218.112.2
on on
v1-boundary-clock v1-boundary-clock v1-boundary-clock
false false
on on
on off
149.218.112.0 0.0.0.0
any any
No No
on on
224.0.1.1 224.0.1.1
1 1
30 30
149.218.112.3
on
false
on
off
0.0.0.0
any
No
on
224.0.1.1
1
30
Basic Configuration
Release 6.0 07/2010