Running PTP (Precision Time Protocol)
PTP settings:
•
PTP Enabled
Enables PTP grandmaster daemon
•
PTP options:
•
Transport layer
•
L2 (Ethernet): PTP packets are encapsulated directly in Ethernet
frames (IEEE 802.3 network transport)
•
L4 (UDP): PTP packets are exchanged over UDP/IPv4
•
IP mode
The option available for L4 (UDP) transport layer only.
•
multicast (default)
•
unicast
•
hybrid mode
Multicast for SYNC and announce packets, unicast for delay request and response packets.
•
Delay mechanizm
•
E2E (default)
Delay is measured end-to-end. Delay is calculated for the whole path:
grandmaster/master/boundary clock - transparent clocks - slave ordinary clock (GM/MC/BC
- TC - OC/SC).
•
P2P
Delay is measured peer-to-peer. If transparent clocks are present in a network they need to
support peer-delay mechanizm (and be configured to enable it).
•
SYNC interval (default 1)
SYNC packet interval value must be in range -7....7 (recommended limits are -3...3).
•
-4: 62.5ms (1/16 s)
•
-3: 125ms (1/8 s)
•
-2: 250ms (1/4 s)
•
-1: 0.5s (1/2 s)
•
0: 1 second (typical interval)
•
1: 2 seconds (default)
•
2: 4 seconds
•
3: 8 seconds
•
4: 16 seconds
Summary of Contents for NTS-pico
Page 1: ...NTS pico Miniature NTP Time Server for Small Networks ...
Page 8: ...Grounding system ...
Page 9: ...NTS pico surge protection ...
Page 17: ......
Page 19: ......
