Dell Force10 MXL Blade MXL 10/40GbE Switch IO Module Configuration Guide - Page 599

Figure 34-1. 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 Range: 0-4 Code: 0: unspecified 1: primary reference clock 11: reserved 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 The MXL Switch can only be an NTP client. Configuring Network Time Protocol Configuring NTP is a one-step process: 1. Enable NTP. Related Configuration Tasks • Configure NTP Broadcasts • Set the Hardware Clock with the Time Derived from NTP • Configure NTP Broadcasts • Disable NTP on an Interface • Configure a Source IP Address for NTP Packets (optional) Enable NTP NTP is disabled by default. To enable it, specify an NTP server to which the Dell Force10 system will synchronize. Enter the command multiple times to specify multiple servers. You may specify an unlimited number of servers at the expense of CPU resources. System Time and Date | 597