Dell Force10 S55T FTOS Command Line Reference Guide for the S55 System FTOS 8. - Page 1049

prefer version number (OPTIONAL) Enter the keyword prefer to indicate that this peer has priority over other servers. (OPTIONAL) Enter the keyword version and a number to correspond to the NTP version used on the server. Range: 1 to 3 Defaults Not configured. Command Modes CONFIGURATION Command History Version 8.3.5.0 Version 7.6.1.0 Version 7.5.1.0 pre-Version 6.1.1.0 Introduced on S55 Support added for S-Series Support added for C-Series Introduced for E-Series Usage Information You can configure multiple time serving hosts (up to 250). From these time serving hosts, the FTOS will choose one NTP host with which to synchronize. Use the show ntp associations to determine which server was selected. Since a large number of polls to NTP hosts can impact network performance, Force10 Networks recommends that you limit the number of hosts configured. Related Commands show ntp associations Displays NTP servers configured and their status. ntp source c e s Specify an interface's IP address to be included in the NTP packets. Syntax ntp source interface To delete the configuration, enter no ntp source. Parameters interface Enter the following keywords and slot/port or number information: • For an 100/1000 Ethernet interface, enter the keyword GigabitEthernet followed by the slot/port information. • For a 1-Gigabit Ethernet interface, enter the keyword GigabitEthernet followed by the slot/port information. • For Loopback interfaces, enter the keyword loopback followed by a number from zero (0) to 16383. • For a Port Channel interface, enter the keyword lag followed by a number: C-Series and S-Series Range: 1-128 E-Series Range: 1 to 255 for TeraScale • For SONET interface types, enter the keyword sonet followed by the slot/port information. • For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet followed by the slot/port information. • For VLAN interface, enter the keyword vlan followed by a number from 1 to 4094. Defaults Not configured. Time and Network Time Protocol (NTP) | 1049