Command Line Reference Guide

1454 | Time and Network Time Protocol (NTP)
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ntp multicast client
e
Configure the switch to receive NTP information from the network via multicast.
Syntax
ntp multicast client [multicast-address]
To disable multicast reception, use the no ntp multicast client [multicast-address] command.
Parameters
Defaults
Not configured.
Command Modes
INTERFACE
Command
History
ntp server
c e s
Configure an NTP time-serving host.
Syntax
ntp server [vrf vrf-name] {hostname | ipv4-address | ipv6-address} [key keyid] [prefer]
[version number]
Parameters
Defaults
Not configured.
Command Modes
CONFIGURATION
Command
History
multicast-address
(OPTIONAL) Enter a multicast address. Enter either an IPv4 address in dotted
decimal format or an IPv6 address in X:X:X:X::X format. If you do not enter a
multicast address, the address 224.0.1.1 is configured if the interface address is
IPv4 or ff05::101 is configured if the interface address is IPv6.
Version 8.4.1.0 Added support for IPv6 multicast addresses.
pre-Version 6.1.1.0 Introduced for E-Series
vrf vrf-name
(OPTIONAL) Enter the keyword vrf followed by the name of the VRF. Range: 1 to 63.
ipv4-address |
ipv6-address
Enter an IPv4 address (A.B.C.D) or IPv6 address (X:X:X:X::X).
hostname
Enter the hostname of the server.
key keyid (OPTIONAL) Enter the keyword key and a number as the NTP peer key.
Range: 1 to 4294967295
prefer (OPTIONAL) Enter the keyword prefer to indicate that this peer has priority over other
servers.
version
number
(OPTIONAL) Enter the keyword version and a number to correspond to the NTP
version used on the server.
Range: 1 to 3
Version 8.4.6.0 Added support for VRF.
Version 8.4.1.0 Added IPv6 support.
Version 7.6.1.0 Support added for S-Series
Version 7.5.1.0 Support added for C-Series
pre-Version 6.1.1.0 Introduced for E-Series