DLINK-TIME-MIB

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Organization: DLink Corporation

Last Updated: 2002-02-14

Category: Technology: Time Synchronization, Vendor: D-Link

Description: Manages system clock, time zone, and NTP/SNTP synchronization settings on D-Link network devices.

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What Is DLINK-TIME-MIB?

DLINK-TIME-MIB is a proprietary D-Link MIB covering a device's absolute system clock and time synchronization settings (time zone and NTP/SNTP configuration), applicable broadly across D-Link managed network equipment rather than one specific switch family. It exposes configuration for setting/reading the current system time, time-zone offset, and synchronization source/server settings used to keep the device clock accurate. From a software-health perspective, correct system time is foundational: it underpins accurate syslog timestamps, certificate validity checks, and scheduled/time-range features elsewhere in the device, so this MIB is monitored to catch clock drift or a failed NTP sync that would otherwise silently corrupt time-based logs and policies. No sample objects were extracted for this module, so specific object names cannot be confirmed. It is deployed across the general D-Link managed switch/router product line, with the DLINK-TIME-MIB MIB used wherever time accuracy affects logging, security certificates, or scheduled features.

IPNetwork Monitor allows you to monitor SNMP objects defined in DLINK-TIME-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

D-Link managed switch or router (general product line)

Monitoring Examples

No object names were provided in sample_objects for this MIB, so a concrete polling scenario with real identifiers cannot be given honestly. Conceptually, an administrator would compare the device's reported current time against an external reference to detect clock drift or a stalled NTP/SNTP sync, but the exact table/object names are not confirmed here.

What Can Be Monitored

system clock/current time
time zone configuration
NTP/SNTP sync status

Imported Objects

From DLINK-ID-REC-MIB

dlink-common-mgmt

From SNMPv2-SMI

IpAddress
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DateAndTime
DisplayString
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
swDlinkTimeMIB	1.3.6.1.4.1.171.12.10			DLink equipments absolute time.
BIT swTimeCapacity	1.3.6.1.4.1.171.12.10.1	Bits	read-only	A string of 8 bits, corresponding to indicates the time capacity supported in the system. If sntp bit(1) is 1 , indicate the SNTP is supported else if sntp bit is 0, the SNTP is not supported and the subtree swSNTP will not supported also. If summerTime bit(2) is 1 ,indicate the SummerTime is supported else if sntp bit is 0, the SummerTime is not supported and the subtree swSummerTime will not supported also. If realTimeClock(3) bit is 1 , indicate the real time clock is supported else if the bit is 0, the real time clock is not supported . Default systemTime bit(0) is 1; indicate the system time is supported.
DAT swCurrentClock	1.3.6.1.4.1.171.12.10.2	DateAndTime	read-write	The current local date and time for the system. Setting this object is equivalent to setting an automated clock and calendar. The value of the object will track the date and time from the value set. Note that due to hardware limitations some systems may not be able to preserve such meaning across reboots of the system, as indicated by swDlinkClockLostOnReboot. A constant value of all zeros and length 8 indicates the system is not aware of the present date and time. This object may be read-only on some systems.
T/F swClockLostOnReboot	1.3.6.1.4.1.171.12.10.3	TruthValue	read-only	Indication of whether the system can preserve knowledge of current date and time across a system reboot. A value of 'true' indicates the clock must be reset from some external source each time the system reboots. A value of 'false' indicates the system has the ability to keep time across reboots.
swSystemTime	1.3.6.1.4.1.171.12.10.10
STR swSystemCurrentTime	1.3.6.1.4.1.171.12.10.10.1	DisplayString	read-only	the mandatory network time was got from the SNTP server
STR swSystemUpTime	1.3.6.1.4.1.171.12.10.10.2	DisplayString	read-only	The time (in second) since the network management portion of the system was last re-initialized. It is the same as sysUptime.
STR swSystemBootTime	1.3.6.1.4.1.171.12.10.10.3	DisplayString	read-only	The boot time of the switch is equal to subtract systemUpTime from swSNTPCurrentTime
INT swSystemTimeZone	1.3.6.1.4.1.171.12.10.10.4	INTEGER	read-write	Local time offset in minutes from GMT.
swSNTP	1.3.6.1.4.1.171.12.10.11
INT swSNTPState	1.3.6.1.4.1.171.12.10.11.1	INTEGER	read-write	This object enable/disable the SNTP function.
INT swSNTPTimeSource	1.3.6.1.4.1.171.12.10.11.2	INTEGER	read-only	the SNTP server status for time source changing
IP swSNTPServer1IPAddr	1.3.6.1.4.1.171.12.10.11.3	IpAddress	read-write	Configure the SNTP server #1 IP address
IP swSNTPServer2IPAddr	1.3.6.1.4.1.171.12.10.11.4	IpAddress	read-write	Configure the SNTP server #2 IP address
INT swSNTPPollInterval	1.3.6.1.4.1.171.12.10.11.5	INTEGER	read-write	Update time in seconds from SNTP server.
swSummerTime	1.3.6.1.4.1.171.12.10.12
INT swSummerTimeStatus	1.3.6.1.4.1.171.12.10.12.1	INTEGER	read-write	An indication of whether the summertime feature is disabled or enabled in reprating or annual mode on this device. When this object is set to repeating,then the summertime frature is enabled and swSummerTimeOffset,swSummerTimeRepeatingStart ,swSummerTimeRepeatingEnd objects are work effectively . When this object is set to annual, then the summertime frature is enabled and swSummerTimeOffset, swAnnualSummerTimeStart, swAnnualSummerTimeEnd objects are work effectively.
INT swSummerTimeOffset	1.3.6.1.4.1.171.12.10.12.2	INTEGER	read-write	The value of this object indicates number of minutes to add or to subtract during summertime. This object is not instantiated when swSummerTimeStatus object is set to disable.
OCT swRepeatSummerTimeStart	1.3.6.1.4.1.171.12.10.12.3	OCTET STRING	read-write	Indicates summertime starts at this time every year. octets contents range 1 week 1..4,00 last = 00 2-3 day 1..7 where sunday = 1 saturday = 7 4 month 1..12 where january = 1 december = 12 5 hour 0..23 6 min 0..59 For example, the first Monday in Feb at 13:30pm should be given as 01 00 02 02 0e 1e For the last Tuesday in dec at 1:20am should be given as 00 00 03 0c 01 14 This object is not instantiated when swSummerTimeStatus object is not set to repeating.
OCT swRepeatSummerTimeEnd	1.3.6.1.4.1.171.12.10.12.4	OCTET STRING	read-write	Indicates summertime ends at this time every year. octets contents range 1 week 1..5,ff where ff = last 2-3 day 1..7 where sunday = 1 saturday = 7 4 month 1..12 where january = 1 december = 12 5 hour 0..23 6 min 0..59 For example, the third friday in February at 3:30am should be given as 03 00 06 02 03 1e For the first Tuesday in May at 1:20am should be given as 01 00 03 05 01 14 This object is not instantiated when swSummerTimeStatus object is not set to repeating.
OCT swAnnualSummerTimeStart	1.3.6.1.4.1.171.12.10.12.5	OCTET STRING	read-write	Indicates summertime starts at this time every year. octets contents range 1 monthDay 1..31, 2 month 1..12 where january = 1 december = 12 3 hour 0..23 4 min 0..59 For example, the first Feb at 13:30pm should be given as 01 02 0e 1e For the tenth dec at 1:20am should be given as ff 00 03 0c 01 14 This object is not instantiated when swSummerTimeStatus object is not set to annual.
OCT swAnnualSummerTimeEnd	1.3.6.1.4.1.171.12.10.12.6	OCTET STRING	read-write	Indicates summertime ends at this time every year. octets contents range 1 monthDay 1..31, 2 month 1..12 where january = 1 december = 12 3 hour 0..23 4 min 0..59 For example, the third February at 3:30am should be given as 03 02 03 1e For the first May at 1:20am should be given as 01 05 01 14 This object is not instantiated when swSummerTimeStatus object is not set to annual.
swTimeNotifPrefix	1.3.6.1.4.1.171.12.10.13

RFC description

Manages system time, SNTP synchronization, and daylight saving time configuration on D-Link devices.

Start monitoring D-Link managed switch/router (system clock/NTP time sync) 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 DLINK-TIME-MIB

What Is DLINK-TIME-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description