BEGEMOT-NTP-MIB

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Organization: German Aerospace Center

Last Updated: 2005-09-30

Category: IP and Core Protocols, Net-SNMP and Linux

Description: Monitors NTP daemon synchronization status and peer statistics via the FreeBSD Begemot SNMP agent.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) 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.

What Is BEGEMOT-NTP-MIB?

BEGEMOT-NTP-MIB is a German Aerospace Center (DLR, 'Begemot' project) proprietary MIB (built on BEGEMOT-MIB) configuring and monitoring an NTP client's synchronization health for SNMP-managed systems. Its objects cover the configured NTP host/port/timeout, a debug-level setting, jitter and stability measurements with their alerting thresholds, and a trap-enable flag. As a configuration/performance MIB it lets an administrator confirm NTP time-sync quality (jitter, stability) against configured thresholds and get alerted when synchronization degrades. It is deployed on systems running the Begemot NTP control module. Engineers can download the BEGEMOT-NTP-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in BEGEMOT-NTP-MIB. 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

Systems running the Begemot NTP control module

Monitoring Examples

An administrator monitors begemotNtpJitter against begemotNtpJitterThresh to catch degrading NTP time-sync quality before it affects time-sensitive applications.

What Can Be Monitored

NTP synchronization jitter and stability vs. thresholds

Imported Objects

From BEGEMOT-MIB

begemot

MODULE-IDENTITY

From SNMPv2-SMI

Counter64
MODULE-IDENTITY
OBJECT-TYPE
TimeTicks
Unsigned32

From SNMPv2-TC

TruthValue

How to Use in IPNetwork Monitor

Example using begemotNtpJitter OID:

Select a FreeBSD hosts/appliances running the Begemot bsnmpd SNMP agent as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type begemotNtpJitter into the Find box to locate it in the OID tree, then select it and click OK. It reports the current jitter in seconds multiplied by 2^32. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter64-type OID, Value bounds is the most useful condition here — trigger an alert if the jitter climbs well above its normal baseline, since rising jitter often signals network congestion or a degrading path. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
begemotNtp	1.3.6.1.4.1.12325.1.201			The MIB for the NTP control module for SNMP.
begemotNtpObjects	1.3.6.1.4.1.12325.1.201.1
OCT begemotNtpHost	1.3.6.1.4.1.12325.1.201.1.1	OCTET STRING	read-only	The name of the host where the NTP daemon is running that is to be connected.
OCT begemotNtpPort	1.3.6.1.4.1.12325.1.201.1.2	OCTET STRING	read-only	The port of the host where the NTP daemon is running that is to be connected.
TIK begemotNtpTimeout	1.3.6.1.4.1.12325.1.201.1.3	TimeTicks	read-write	The number of ticks to wait for the response from the NTP daemon to complete.
U32 begemotNtpDebug	1.3.6.1.4.1.12325.1.201.1.4	Unsigned32	read-write	Debug flags. The following flags are currently used: 0x01 - produce a dump of all received/sent NTP packets. 0x02 - print the variable names and values return by the daemon Other bits are ignored.
C64 begemotNtpJitterEx	1.3.6.1.4.1.12325.1.201.1.5	Counter64	read-only	Current jitter in seconds multiplied by 2^32.
C64 begemotNtpStability	1.3.6.1.4.1.12325.1.201.1.6	Counter64	read-only	Current stability in ppm multiplied by 2^32.
C64 begemotNtpJitterThresh	1.3.6.1.4.1.12325.1.201.1.7	Counter64	read-only	Jitter trap threshold in seconds multiplied by 2^32.
C64 begemotNtpStabilityThresh	1.3.6.1.4.1.12325.1.201.1.8	Counter64	read-only	Stability trap threshold in ppm multiplied by 2^32.
T/F begemotNtpTrapEnable	1.3.6.1.4.1.12325.1.201.1.9	TruthValue	read-only	Enables the sending of traps when either the peer is lost/ found or one of the above thresholds is crossed.

RFC description

FreeBSD Begemot private MIB module for NTP (Network Time Protocol) monitoring and management on Unix systems.

Start monitoring FreeBSD hosts/appliances running the Begemot bsnmpd SNMP agent 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 BEGEMOT-NTP-MIB