Dell Force10 S4820T S4820T Configuration Guide - Page 967

Figure 49-1. NTP Fields Source Port (123) Destination Port (123) Length Checksum NTP Packet Payload Range: +32 to -32 Leap Indicator Status Type Precision Est. Error Est. Drift Rate Reference Clock ID Reference Timestamp Originate Timestamp Code: 00: No Warning 01: +1 second 10: -1 second 11: reserved Range: 0-4 Code: 0: unspecified 1: primary reference clock 2: secondary reference clock via NTP 3: secondary reference via some other host/protocol Range: 0-4 4: eyeball-and-wristwatch Code: 0: clock operating correctly 1: carrier loss 2: synch loss 3: format error 4: interface/link failure Recieve Timestamp Transmit Timestamp Implementation Information • Dell Force10 systems can only be an NTP client. Configuring Network Time Protocol Configuring NTP is a one-step process: 1. Enable NTP. See page 968. Related Configuration Tasks • Configure NTP broadcasts on page 969 • Set the Hardware Clock with the Time Derived from NTP on page 968 • Set the Hardware Clock with the Time Derived from NTP on page 968 • Disable NTP on an interface on page 969 • Configure a source IP address for NTP packets on page 969 (optional) System Time and Date | 967