96 lines
3.0 KiB
Markdown
96 lines
3.0 KiB
Markdown
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# CONSISTENCY03: SOA timers consistency
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## Test case identifier
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**CONSISTENCY03**
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## Objective
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All SOA record timer fields must be consistent across all authoritative
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name servers. An inconsistency in these fields might result in operational
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inconsistencies for the designated zone.
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There are other test cases that provide consistency tests for the other
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SOA fields:
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* [CONSISTENCY01] (SOA Serial)
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* [CONSISTENCY02] (RNAME)
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* [CONSISTENCY06] (MNAME)
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## Scope
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It is assumed that *Child Zone* is also tested by [Connectivity01]. This test
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case will set DEBUG level on messages for non-responsive name servers.
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## Inputs
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* The domain name to be tested ("Child Zone").
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## Ordered description of steps to be taken to execute the test case
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1. Create an SOA query for *Child Zone* apex.
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2. Obtain the list of name server IPs for the *Child Zone* from [Method4]
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and [Method5].
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3. Send the SOA query to all name server IPs.
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4. If a name server does not respond, emit *[NO_RESPONSE]*.
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5. If a name server responds but no SOA record is included in the
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response, emit *[NO_RESPONSE_SOA_QUERY]*.
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6. Retrieve the SOA RR from the responses from all name server IPs.
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7. Emit *[ONE_SOA_TIME_PARAMETER_SET]* if at least one SOA record has
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been retrieved and all SOA records have:
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1. the same REFRESH value,
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2. the same RETRY value,
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3. the same EXPIRE value, and
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4. the same MINIMUM value.
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8. Emit *[MULTIPLE_SOA_TIME_PARAMETER_SET]* if any two SOA
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records had different values in previous step.
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## Outcome(s)
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The outcome of this Test Case is "fail" if there is at least one message
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with the severity level *ERROR* or *CRITICAL*.
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The outcome of this Test Case is "warning" if there is at least one message
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with the severity level *WARNING*, but no message with severity level
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*ERROR* or *CRITICAL*.
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In other cases the outcome of this Test Case is "pass".
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Message | Default severity level (if message is emitted)
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:--------------------------------|:-----------------------------------
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NO_RESPONSE | DEBUG
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NO_RESPONSE_SOA_QUERY | DEBUG
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ONE_SOA_TIME_PARAMETER_SET | INFO
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MULTIPLE_SOA_TIME_PARAMETER_SET | NOTICE
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## Special procedural requirements
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If either IPv4 or IPv6 transport is disabled, ignore the evaluation of the
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result of any test using this transport protocol. Log a message reporting
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on the ignored result.
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## Intercase dependencies
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None.
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[Connectivity01]: ../Connectivity-TP/connectivity01.md
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[CONSISTENCY01]: consistency01.md
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[CONSISTENCY02]: consistency02.md
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[CONSISTENCY06]: consistency06.md
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[MULTIPLE_SOA_TIME_PARAMETER_SET]: #outcomes
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[Method4]: ../Methods.md#method-4-obtain-glue-address-records-from-parent
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[Method5]: ../Methods.md#method-5-obtain-the-name-server-address-records-from-child
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[NO_RESPONSE]: #outcomes
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[NO_RESPONSE_SOA_QUERY]: #outcomes
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[ONE_SOA_TIME_PARAMETER_SET]: #outcomes
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