Configuration Guide Configuring NTP
Deployment
Configure DEVICE-B to the NTP external reference clock mode.
13.2.2 Synchronizing Time Based on a Local Reference Clock Source
Scenario
As shown in Figure 13-2, DEVICE-B uses a local clock as the NTP reference clock source and provides time synchronization
for DEVICE-C.
Figure 13-2
Deployment
Configure DEVICE-B to the NTP local reference clock mode.
13.3 Features
Basic Concepts
 NTP Packet
As defined in RFC1305, NTP uses User Datagram Protocol (UDP) packets for transmission and the used UDP port ID is 123.
Figure 13-3 shows the format of an NTP time synchronization packet.
Figure 13-3 Format of an NTP Time Synchronization Packet
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