Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 1105

Enabling NTP NTP is disabled by default. To enable NTP, specify an NTP server to which the Dell Networking system synchronizes. To specify multiple servers, enter the command multiple times. You may specify an unlimited number of servers at the expense of CPU resources. • Specify the NTP server to which the Dell Networking system synchronizes. CONFIGURATION mode ntp server ip-address Example of Viewing the System Clock State To display the system clock state with respect to NTP, use the show ntp status command from EXEC Privilege mode. R6(conf)#do show ntp status Clock is synchronized, stratum 2, reference is 192.168.1.1 frequency is -369.623 ppm, stability is 53.319 ppm, precision is 4294967279 reference time is CD63BCC2.0CBBD000 (16:54:26.049 UTC Thu Mar 12 2009) clock offset is 997.529984 msec, root delay is 0.00098 sec root dispersion is 10.04271 sec, peer dispersion is 10032.715 msec peer mode is client To display the calculated NTP synchronization variables received from the server that the system uses to synchronize its clock, use the show ntp associations command from EXEC Privilege mode. R6(conf)#do show ntp associations remote ref clock st when poll reach delay offset disp #192.168.1.1 .LOCL. 1 16 16 76 0.98 -2.470 879.23 * master (synced), # master (unsynced), + selected, - candidate Configuring NTP Broadcasts With Dell Networking OS, you can receive broadcasts of time information. You can set interfaces within the system to receive NTP information through broadcast. To configure an interface to receive NTP broadcasts, use the following commands. • Set the interface to receive NTP packets. INTERFACE mode ntp broadcast client Example of Configuring NTP Broadcasts 2w1d11h : NTP: Maximum Slew:-0.000470, Remainder = -0.496884 System Time and Date 1105