BCN-DNS-MIB

All MIBs › BCN-DNS-MIB

Organization: BlueCat Networks

Last Updated: 2010-11-30

Category: IP and Core Protocols, Vendor: BlueCat Networks

Description: Manages DNS service configuration, zone statistics, and query counters on BlueCat Networks appliances.

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What Is BCN-DNS-MIB?

BCN-DNS-MIB is a BlueCat Networks proprietary MIB providing status and statistics for the DNS service running on BlueCat DNS/DHCP/IPAM appliances. It exposes operational state, zone count, in-progress zone transfers and SOA queries, query logging/debug level settings, and detailed query-response statistics such as successes, referrals, NXRRSet, NXDomain, and recursion counts. This is squarely a software service health MIB: it lets an operator confirm the DNS process is running (bcnDnsSerOperState), catch stuck or deferred zone transfers, and spot rising failure-response rates that indicate resolution problems or misconfigured zones. It layers BlueCat-specific statistics on top of the standard DNS protocol model rather than depending on other SNMP MIBs. It is deployed by enterprises and service providers running BlueCat appliances as authoritative or caching DNS servers within their IPAM infrastructure. Engineers can download the BCN-DNS-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in BCN-DNS-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

BlueCat Networks DNS/DHCP/IPAM appliance

Monitoring Examples

An operator would poll bcnDnsSerOperState to confirm the DNS service is up, and watch bcnDnsSerTransfersDeferred alongside bcnDnsSerTransfersRunning to catch zone transfers that are stuck or failing. Rising bcnDnsStatSrvQryNXDomain or bcnDnsStatSrvQryNXRRSet counts relative to bcnDnsStatSrvQrySuccess would indicate a spike in failed lookups, potentially due to a misconfigured zone or an upstream resolution problem, while bcnDnsSerNumberOfZones confirms the expected zone count is loaded.

What Can Be Monitored

DNS service operational state
number of zones loaded
zone transfers running/deferred
query success/failure counts (NXDomain, NXRRSet, referral)
recursive query count
query logging/debug level

Imported Objects

From BCN-SMI-MIB

bcnServices

OBJECT-IDENTITY

From BCN-TC-MIB

BcnAlarmSeverity

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter64
Gauge32
Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString

How to Use in IPNetwork Monitor

Example using bcnDnsStatSrvQrySuccess OID:

Select a BlueCat Networks DNS/DHCP/IPAM appliance 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 bcnDnsStatSrvQrySuccess into the Find box to locate it in the OID tree, then select it and click OK. Queries resulted in a successful answer. 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 counter increases sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
bcnDns	1.3.6.1.4.1.13315.3.1.2
bcnDnsMIB	1.3.6.1.4.1.13315.3.1.2.1			This module provides status as well as statistical information about the DNS service.
bcnDnsObjects	1.3.6.1.4.1.13315.3.1.2.2
bcnDnsServiceStatus	1.3.6.1.4.1.13315.3.1.2.2.1			General state of the DNS Service.
INT bcnDnsSerOperState	1.3.6.1.4.1.13315.3.1.2.2.1.1	INTEGER	read-only	Operational state of the Service. The possible states are: running(1) The service is running normally. notRunning(2) The service is stopped either intentionally (i.e.: the service is not supposed to run on this node) or unintentionally (a problem has occurred). starting(3) The service is in the process of starting, either for the first time of after an event occurred. stopping(4) The service is in the process of stopping. Stopping a service might be necessary after a configuration change. fault(5) An error has been detected and the state is undefined.
G32 bcnDnsSerNumberOfZones	1.3.6.1.4.1.13315.3.1.2.2.1.2	Gauge32	read-only	Number of zones loaded.
G32 bcnDnsSerTransfersRunning	1.3.6.1.4.1.13315.3.1.2.2.1.3	Gauge32	read-only	Number of zone transfers currently in progress.
G32 bcnDnsSerTransfersDeferred	1.3.6.1.4.1.13315.3.1.2.2.1.4	Gauge32	read-only	Number of zone transfers currently deferred.
G32 bcnDnsSerSOAQueriesInProgress	1.3.6.1.4.1.13315.3.1.2.2.1.5	Gauge32	read-only	Number of SOA queries in progress.
INT bcnDnsSerQueryLogging	1.3.6.1.4.1.13315.3.1.2.2.1.6	INTEGER	read-only	State of query logging. The possible values are on(1) or off(2).
I32 bcnDnsSerDebugLevel	1.3.6.1.4.1.13315.3.1.2.2.1.7	Integer32	read-only	Debug log level. The possible values range from 0 to 99. Where 0 indicates no logging and 99 is the maximum level of logging.
bcnDnsServiceStatistics	1.3.6.1.4.1.13315.3.1.2.2.2			DNS statistics objects container
bcnDnsStatServer	1.3.6.1.4.1.13315.3.1.2.2.2.1			DNS server statistics objects container
C64 bcnDnsStatSrvQrySuccessEx	1.3.6.1.4.1.13315.3.1.2.2.2.1.1	Counter64	read-only	Queries resulted in a successful answer.
C64 bcnDnsStatSrvQryReferral	1.3.6.1.4.1.13315.3.1.2.2.2.1.2	Counter64	read-only	Queries resulted in referral answer.
C64 bcnDnsStatSrvQryNXRRSet	1.3.6.1.4.1.13315.3.1.2.2.2.1.3	Counter64	read-only	Queries resulted in non-existent record responses with no data.
C64 bcnDnsStatSrvQryNXDomain	1.3.6.1.4.1.13315.3.1.2.2.2.1.4	Counter64	read-only	Queries resulted in non-existent domain responses with no data.
C64 bcnDnsStatSrvQryRecursion	1.3.6.1.4.1.13315.3.1.2.2.2.1.5	Counter64	read-only	Queries which caused the server to perform recursion lookups in order to find the final answer.
C64 bcnDnsStatSrvQryFailure	1.3.6.1.4.1.13315.3.1.2.2.2.1.6	Counter64	read-only	Number of failed queries that did not result in non-existent domain or record.
bcnDnsNotification	1.3.6.1.4.1.13315.3.1.2.3
bcnDnsNotificationEvents	1.3.6.1.4.1.13315.3.1.2.3.0
NTF bcnDnsAlarmNotif	1.3.6.1.4.1.13315.3.1.2.3.0.1			A bcnDnsAlarmNotif signifies that the DNS service has transitioned state or a particular event has been detected on the service.
bcnDnsNotificationData	1.3.6.1.4.1.13315.3.1.2.3.1
BCN bcnDnsAlarmSeverity	1.3.6.1.4.1.13315.3.1.2.3.1.1	BcnAlarmSeverity	accessible-for-notify	Severity classification for the alarm.
STR bcnDnsAlarmInfo	1.3.6.1.4.1.13315.3.1.2.3.1.2	DisplayString	accessible-for-notify	Descriptive information about the alarm event.
bcnDnsConformance	1.3.6.1.4.1.13315.3.1.2.4
bcnDnsServiceCompliances	1.3.6.1.4.1.13315.3.1.2.4.1
bcnDnsStatusCompliance	1.3.6.1.4.1.13315.3.1.2.4.1.1			Basic conformance
bcnDnsServiceGroups	1.3.6.1.4.1.13315.3.1.2.4.2
bcnDnsServiceStatusGroup	1.3.6.1.4.1.13315.3.1.2.4.2.1			Status conformance.
bcnDnsServerStatisticsGroup	1.3.6.1.4.1.13315.3.1.2.4.2.2			Server statistics conformance.
bcnDnsNotificationEventGroup	1.3.6.1.4.1.13315.3.1.2.4.2.3			Server statistics conformance.
bcnDnsNotificationDataGroup	1.3.6.1.4.1.13315.3.1.2.4.2.4			Server statistics conformance.

RFC description

BlueCat DNS service status and statistics including operational state and performance monitoring.

Start monitoring BlueCat Networks DNS/DHCP/IPAM appliances 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 BCN-DNS-MIB