SYMMNTP

All MIBs › SYMMNTP

Organization: Symmetricom

Last Updated: 2015-12-11

Category: IP Services and Protocols, Timing and Synchronization

Description: Manages Symmetricom NTP server configuration, stratum, reference clock, and client statistics.

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What Is SYMMNTP?

SYMMNTP is the Symmetricom NTP MIB, covering the NTP server functionality of Symmetricom timing appliances, split into status and configuration nodes for the NTP service. It exposes data such as NTP stratum level, reference clock source, and client request/response statistics. Its monitoring emphasis is on software/service status: confirming the NTP daemon's stratum and reference clock are correct and stable, and tracking client statistics to see how many devices depend on it, which matters because a Symmetricom appliance is often deployed specifically as an authoritative time source for an entire network. It is built directly on the IETF NTP protocol (RFC 1305/5905 concepts) as its underlying standard. It is deployed on Symmetricom NTP time-server appliances providing stratum-1/stratum-2 time to network infrastructure, with the SYMMNTP MIB loaded into a browser to inspect its status and configuration nodes.

IPNetwork Monitor allows you to monitor SNMP objects defined in SYMMNTP. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

Symmetricom NTP time server appliance

Monitoring Examples

No object names were sampled for this module, so specifics are inferred from the module description's status/configuration split. An admin would typically poll the NTP status node for current stratum and reference clock source to confirm the appliance is still synchronized to its upstream (e.g., GPS) reference, since a stratum increase or reference-clock change would indicate the appliance lost its primary time source and failed over to a lower-quality one, and client statistics would reveal whether downstream devices are still successfully querying it.

What Can Be Monitored

NTP stratum level
reference clock source
client request statistics
synchronization status

Imported Objects

From ENTITY-MIB

entPhysicalIndex

OBJECT-TYPE

From IF-MIB

ifIndex	OBJECT-TYPE
ifNumber	OBJECT-TYPE

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
OBJECT-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DisplayString
TEXTUAL-CONVENTION

From SYMM-COMMON-SMI

EnableValue
symmPacketService	OBJECT-IDENTITY

OIDs

OID symbolic	OID numeric	Type	Access	Description
symmNTP	1.3.6.1.4.1.9070.1.2.5.1.2			This is the Symmetricom NTP MIB. It has two main nodes: NTP status and NTP configuration.
ntpStatus	1.3.6.1.4.1.9070.1.2.5.1.2.1
ntpCommonStatusTable	1.3.6.1.4.1.9070.1.2.5.1.2.1.1		not-accessible	The NTP status table. It provides status for the NTP server operation. There are 7 status parameters.
ntpCommonStatusEntry	1.3.6.1.4.1.9070.1.2.5.1.2.1.1.1		not-accessible	An entry of the NTP status table. Table index is ifIndex (port and interface index).
I32 ntpStatusIndex	1.3.6.1.4.1.9070.1.2.5.1.2.1.1.1.1	Integer32	not-accessible	Local index of the NTP common status table.
ENA ntpStatusEnable	1.3.6.1.4.1.9070.1.2.5.1.2.1.1.1.2	EnableValue	read-only	The NTP enable status for the specified NTP port. It can be Enable (1) or Disable (2). When NTP is disabled at a port, it does not transmit or respond to NTP packets, and all alarms associated with NTP for this port are cleared.
STR ntpStatusMode	1.3.6.1.4.1.9070.1.2.5.1.2.1.1.1.3	DisplayString	read-only	The NTP operational mode. It can act as server or client. Currently only the server mode is supported.
STR ntpStatusLeapStatus	1.3.6.1.4.1.9070.1.2.5.1.2.1.1.1.4	DisplayString	read-only	The NTP leap second status. Possible values are : No warning, Leap insertion, Leap deletion, Not in sync.
STR ntpStatusStratumLevel	1.3.6.1.4.1.9070.1.2.5.1.2.1.1.1.5	DisplayString	read-only	The stratum level of the reference for the NTP clock at the specified port. Its range is 1-4. Only stratum level 1(PRC/PRS) is supported.
STR ntpStatusRootDispersion	1.3.6.1.4.1.9070.1.2.5.1.2.1.1.1.6	DisplayString	read-only	Root dispersion. Hardcoded to be 0.
STR ntpStatusPacketLoad	1.3.6.1.4.1.9070.1.2.5.1.2.1.1.1.7	DisplayString	read-only	NTP packet response load. Its range is 1-100 in unit of %.
STR ntpStatusVersion	1.3.6.1.4.1.9070.1.2.5.1.2.1.1.1.8	DisplayString	read-only	NTP protocol version. Only version 4 is supported.
ntpConfig	1.3.6.1.4.1.9070.1.2.5.1.2.2
ntpCommonConfigTable	1.3.6.1.4.1.9070.1.2.5.1.2.2.1		not-accessible	The NTP server configuration table.
ntpCommonConfigEntry	1.3.6.1.4.1.9070.1.2.5.1.2.2.1.1		not-accessible	An entry of the NTP server configuration table. Table index is ifIndex (port and interface index).
I32 ntpCommonIndex	1.3.6.1.4.1.9070.1.2.5.1.2.2.1.1.1	Integer32	not-accessible	Local index of the NTP common parameter configuration table.
ENA ntpCommonState	1.3.6.1.4.1.9070.1.2.5.1.2.2.1.1.2	EnableValue	read-write	The NTP service enable state for the specified port. It can be Enable (1) or Disable (2). Default value is Enable. When NTP is disabled at a port, it does not transmit or respond to NTP packets, and all alarms associated with NTP for this port are cleared.
U32 ntpCommonTTL	1.3.6.1.4.1.9070.1.2.5.1.2.2.1.1.3	Unsigned32	read-write	IP header time-to-live (TTL) field for the NTP packets. Range is 1-255. Default value is 64.
ENA ntpCommonDSCP	1.3.6.1.4.1.9070.1.2.5.1.2.2.1.1.4	EnableValue	read-write	Differentiated service code point (DSCP) state for the specified NTP port. It can be either Enable (1) or Disable (2). Default value is Disable. If DSCP state is Enable, the QoS field will have a configured DSCP value.
U32 ntpCommonDSCPValue	1.3.6.1.4.1.9070.1.2.5.1.2.2.1.1.5	Unsigned32	read-write	DSCP value for PTP packets leaving this port. Range is 0-63, and default value is 0.
INT ntpCommonVlanId	1.3.6.1.4.1.9070.1.2.5.1.2.2.1.1.6	INTEGER	read-write	The VLAN ID associated with the NTP service at this port. Each port only supports one NTP VLAN.
I32 ntpCommonServiceLoadAlarmThreshold	1.3.6.1.4.1.9070.1.2.5.1.2.2.1.1.7	Integer32	read-write	It shows percentage (%) of NTP service load alarm threshold
ntpConformance	1.3.6.1.4.1.9070.1.2.5.1.2.3			This subtree contains conformance statements for the SYMMETRICOM-LED-MIB module.
ntpCompliances	1.3.6.1.4.1.9070.1.2.5.1.2.3.1
ntpBasicCompliance	1.3.6.1.4.1.9070.1.2.5.1.2.3.1.1			The compliance statement for SNMP entities which have NTP packet service.
ntpUocGroups	1.3.6.1.4.1.9070.1.2.5.1.2.3.2
ntpStatusGroup	1.3.6.1.4.1.9070.1.2.5.1.2.3.2.1			A collection of objects providing information applicable to NTP status group.
ntpConfigGroup	1.3.6.1.4.1.9070.1.2.5.1.2.3.2.2			A collection of objects providing information applicable to NTP configuration group.

RFC description

NTP management MIB by Symmetricom with two main nodes: NTP status and NTP configuration.

Start monitoring Symmetricom NTP time server appliance (stratum/reference-clock/client statistics) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download SYMMNTP

What Is SYMMNTP?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description