Defaults
Not configured.
Command Modes
INTERFACE
Command History
Version 8.3.11.1
Version 8.4.1.0
Version 8.3.7.0
pre-Version
6.1.1.0
ntp server
Configure an NTP time-serving host.
C-Series, E-Series, S-Series, Z-Series
Syntax
ntp server {hostname | ipv4-address | ipv6-address} [key keyid]
[prefer] [version number]
Parameters
ipv4-address |
ipv6-address
hostname
key
prefer
version
Defaults
Not configured.
Command Modes
CONFIGURATION
Command History
Version 8.3.11.1
Version 8.4.1.0
Version 7.6.1.0
Version 7.5.1.0
1436
•
•
Introduced on the Z9000.
Added support for IPv6 multicast addresses.
Introduced on the S4810.
Introduced on the E-Series.
Enter an IPv4 address (A.B.C.D) or IPv6 address (X:X:X:X::X).
Enter the hostname of the server.
keyid
(OPTIONAL) Enter the keyword key and a number as the NTP peer
key. The range is 1 to 4294967295.
(OPTIONAL) Enter the keyword prefer to indicate that this peer has
priority over other servers.
number
(OPTIONAL) Enter the keyword version and a number to
correspond to the NTP version used on the server. The range is 1 to 3.
Introduced on the Z9000.
Added IPv6 support.
Introduced on the S-Series.
Introduced on the C-Series.
224.0.1.1 is configured if the interface address is IPv4
ff05::101 is configured if the interface address is IPv6