Switch management features 69The SNTP supports primary and secondary NTP servers. The system triesthe secondary NTP server only if the primary NTP server is unresponsive.Configuring with CLITo use the CLI to configure the SNTP feature, use the following procedure:Step Action1 Set the primary and secondary NTP server.2 Enable the SNTP.3 Display the UTC time.4 Optionally, to ensure the synchronization happens immediately,force a synchronization.—End—Setting local time zoneThe SNTP uses Universal Coordinated Time (UTC) for all timesynchronizations so it is not affected by different time zones. For the switchto report the correct time for your local time zone and daylight savings time,you must use the following commands:• "clock time-zone" (page 213)• "no clock time-zone" (page 213)• "clock summer-time" (page 213)• "no clock summer-time" (page 214)• "show clock time-zone" (page 214)• Figure 75 "show clock summer-time" (page 215)Using DNS to ping and TelnetYou can use the DNS client to ping or Telnet to a host server or to a hostby name.To use this feature, you must configure at least one Domain Name Server(DNS). You can also configure a default domain name. If you configurea default domain name, that name is appended to host names that donot contain a dot. The default domain name and addresses are saved inNVRAM.Nortel Ethernet Routing Switch 2500 SeriesOverview — System ConfigurationNN47215-500 (323162-B) 02.02 Standard4.1 19 November 2007Copyright © 2007, Nortel Networks.