eG Monitoring
 

Measures reported by IbDNSZoneTest

This test auto discovers the zones available in the Infoblox appliance and reports the number of DNS referrals, the rate at which responses were successfully made to the appliance, statistics revealing the rate at which queries failed, queries for non existent domains etc. Using this test, administrators cacn identify the zone that is optimally processing the queries without any delays.

The measures made by this test are as follows:

Measurement Description Measurement Unit Interpretation
Success_response Indicates the rate at which queries were processed successfully i.e., the rate at which queries returned successful responses in this DNS zone. Resp/sec A high value is desired for this measure.
Dns_referral Indicates the number of responses with the DNS referrals from the server in this zone. Number  
NxR_query_rec Indicates the rate at which this zone was queried for non existent records. Queries/sec  
NxD_query_rec Indicates the rate at which this zone was queried for non existent domains. Queries/sec  
Recursion_query_rec Indicates the rate at which recursive name queries were received by this zone. Queries/sec With a recursive name query , the DNS client requires that the DNS server responds to the client with either the requested resource record or an error message stating that the record or domain name does not exist. The DNS server cannot just refer the DNS client to a different DNS server.

Thus, if a DNS server does not have the requested information when it receives a recursive query, it queries other servers until it gets the information, or until the name query fails.

Recursive name queries are generally made by a DNS client to a DNS server, or by a DNS server that is configured to pass unresolved name queries to another DNS server, in the case of a DNS server configured to use a forwarder.

Failed_query Indicates the rate at which queries failed in this zone. Queries/sec Ideally the value of this measure should be zero. A gradual/sudden increase in the value of this measure indicates that the zone is currently experiencing slowdowns or executing a query that is too long to complete.