Cisco Nexus 7000 Series Reference Manual page 331

N Commands
ntp multicast
To enable an Network Time Protocol (NTP) IPv4 or IPv6 multicast server on the interface, use the ntp
multicast command. To disable an NTP multicast server on the interface, use the no form of this
command.
Syntax Description
ip4-address
ipv6-address
key key-id
ttl value
version number
Defaults
None
Command Modes
Interface configuration mode
Supported User Roles network-admin
vdc-admin
Command History Release
6.2(2)
Usage Guidelines
You can use the ntp multicast command to configure an NTP IPv4 or IPv6 multicast server on an
interface. The device then sends multicast packets through that interface periodically.
Use NTP broadcast or multicast associations when time accuracy and reliability requirements are
modest, your network is localized, and the network has more than 20 clients. We recommend that you
use NTP broadcast or multicast associations in networks that have limited bandwidth, system memory,
or CPU resources.
This command does not require a license.
Examples This example shows how to configure an NTP IPv6 multicast server on an interface:
switch(config)# interface ethernet 6/1
switch(config-if)# ntp multicast FF02:1::FF0E:8C6C
OL-25806-03
ntp multicast [ipv4-address | ipv6 address] [key key-id] [ttl value] [version number]
no ntp multicast [ipv4-address | ipv6 address] [key key-id] [ttl value] [version number]
(Optional) Multicast IPv4 address.
(Optional) Multicast IPv6 address.
(Optional) Configures the broadcast authentication key number. The range
is from 1 to 65535.
(Optional) Configures the time-to-live (TTL) value of the multicast packets.
The range is from 1 to 255
(Optional) Configures the NTP version. The range is from 2 to 4.
Modification
This command was introduced.
Cisco Nexus 7000 Series NX-OS System Management Command Reference
ntp multicast
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