System Command Reference
384 Basic System Configuration Guide
ip-address — Configures the IP address of a node that acts as an NTP server to this network
element. This is a required parameter.
Values Any valid IP address
ptp — Configures the internal PTP process as a time server into the NTP process. The prefer
parameter is mandatory with this server option (applies only to the 7450 ESS and 7750 SR).
key-id key-id — Enters the key-id that identifies the configured authentication key and
authentication type used by this node to transmit NTP packets to an NTP server. 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. This is an optional
parameter.
Values 1 to 255
version version — Configures the NTP version number that is expected by this node. This is an
optional parameter
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.
SNTP Commands
sntp
Syntax [no] sntp
Context config>system>time
Description This command creates the context to edit the Simple Network Time Protocol (SNTP).
SNTP can be configured in either broadcast or unicast client mode. SNTP is a compact, client-only
version of the NTP. SNTP can only receive the time from SNTP/NTP servers. It cannot be used to
provide time services to other systems.
The system clock is automatically adjusted at system initialization time or when the protocol first starts
up.
When the time differential between the SNTP/NTP server and the system is more than 2.5 seconds, the
time on the system is gradually adjusted.
SNTP is created in an administratively enabled state (no shutdown).
The no form of the command removes the SNTP instance and configuration. SNTP does not need to
be administratively disabled when removing the SNTP instance and configuration.
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