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--- onboarding:snmpmanager:demonstration_of_trap_knowledge_and_question-time [2017/02/14 00:13] – dmcgee
+++ onboarding:snmpmanager:demonstration_of_trap_knowledge_and_question-time [2021/06/25 10:09] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
+====== Trap Knowledge and Question-time ======
+Author: David McGee
+===== Introduction =====
+Trap Knowledge functionality (Available via admin section of SNMP Manager: /SnmpManager/trapKnowledge/) offers a method of enabling SNMP Manager Administrators to populate advanced information about specific SNMP trap/alarm types. A complete trap knowledge database empowers the platform to provide a lot more useful information to technicians and end-users that deal with alarm troubleshooting.
+----
+===== In the Database =====
+Each trap knowledge row in the database generally represents a unique alarm type. All of our current DAS customers leverage this functionality heavily. On a QA system, query the trap_knowledge table in the SNMP Manager database and take a look at the results!
+Based on a trap name and/or alarm severity (depending on technology), the following important human-readable information can be populated, and associated with a trap rule in the SNMP Manager, to help operators understand alarms:
+  * Category
+  * Description (Often utilised as probable cause)
+  * Remedy
+  * Comment
+  * Context
+  * Component Type
+  * Is Service Impacting
+  * **Over Ride Severity**
+Used in conjunction with Trap Override functionality. Over-ride is in place if this is populated. Use caution!
+This value is an enum in the database and so can only be one  of a list of values. This is important for trap knowledge entry / updates so ensure consistency with existing values.
+The only valid values are in the TrapOverrideSeverity enum in the SnmpManager
+<code> public enum OverrideAlarmSeverity {
+  CRITICAL("CRITICAL"), MAJOR("MAJOR"), MINOR("MINOR"), WARNING("WARNING"), INFORMATION("INFORMATION"),DEFAULT("DEFAULT"),DISABLED("DISABLED")</code>
+**Query to check for unique override_severity entries**
+<code>select distinct BINARY override_severity from trap_knowledge;</code>
+----
+===== Sample trap knowledge entry =====
+{{:onboarding:snmpmanager:trap_knowledge.png|}}
+----
+===== Questions =====
+These questions are required for self-assessment rather than submitting answers, etc.
+  * How many trap knowledge entries exist on ExteNet Systems?
+  * Take a look at the Node Monitor user-interface of the SNMP Manager. Identify areas of the alarm summary that are populated by the trap_knowledge table
+  * How are trap rules referenced by Trap Knowledge entries?
+  * What distinct over-ride severities exist for the Trap Knowledge functionality? How flexible is this?

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