Cisco Nexus 7000 Series - Page 331

N Commands
ntp multicast
303
Cisco Nexus 7000 Series NX-OS System Management Command Reference
OL-25806-03
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.
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]
Syntax Description
Defaults None
Command Modes Interface configuration mode
Supported User Roles network-admin
vdc-admin
Command History
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
ip4-address (Optional) Multicast IPv4 address.
ipv6-address (Optional) Multicast IPv6 address.
key key-id (Optional) Configures the broadcast authentication key number. The range
is from 1 to 65535.
ttl value (Optional) Configures the time-to-live (TTL) value of the multicast packets.
The range is from 1 to 255
version number (Optional) Configures the NTP version. The range is from 2 to 4.
Release Modification
6.2(2) This command was introduced.