System Management
Basic System Configuration Guide 383
Specify the key-id that identifies the configured authentication key and authentication type
used by this node to transmit NTP packets to an NTP peer. If an NTP packet is received by
this node, the authentication key-id, type, and key value must be valid otherwise the packet
will be rejected and an event/trap generated.
Default None
Values 1 to 255
version version — Specify the NTP version number that is generated by this node. This parameter
does not need to be configured when in client mode in which case all three nodes are accepted.
Default 4
Values 2 to 4
prefer — When configuring more than one peer, one remote system can be configured as the
preferred peer. When a second peer is configured as preferred, then the new entry overrides
the old entry.
server
Syntax server {ip address | ipv6-address | ptp} [key-id key-id] [version version] [prefer]
no server ip address
Context config>system>time>ntp
Description This command is used when the node should operate in client mode with the ntp server specified in the
address field of this command. The no construct of this command removes the server with the specified
address from the configuration.
If the internal PTP process is to be used as a source of time for System Time and OAM time then it
must be specified as a server for NTP. If PTP is specified then the prefer parameter must also be
specified. Once PTP has established a UTC traceable time from an external grandmaster then it shall
always be the source for time into NTP even if PTP goes into time holdover. PTP applies only to the
7450 ESS and 7750 SR.
Use of the internal PTP time source for NTP will promote the internal NTP server to stratum 1 level.
This may impact the NTP network topology.
Parameters ipv6-address — Configure the IPv6 address of the node that acts as an NTP server to this network
element.
Default None
Values x:x:x:x:x:x:x:x (eight 16-bit pieces)
x:x:x:x:x:x:d.d.d.d
x [0 to FFFF]H
d [0 to 255]D
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