How to create a watch for multiples conditions

Products

• Network Observability
• Spectrum

Issue/Introduction

A watch was created to check the status of an attribute value in a table for multiple instances and for multiple conditions. But it is not working.

https://oid-base.com/get/1.3.6.1.2.1.14.10.1.6

Description:

ospfNbrState OBJECT-TYPE SYNTAX INTEGER { down (1), attempt (2), init (3), twoWay (4), exchangeStart (5), exchange (6), loading (7), full (8) } MAX-ACCESS read-only STATUS current DESCRIPTION "The state of the relationship with this neighbor." REFERENCE "OSPF Version 2, Section 10.1 Neighbor States" DEFVAL { down }

 

If the ospfNbrState value is 1,2,3,5,6 or 7 generate an alarm.

If the ospfNbrState value is 4 or 8 clear the alarm.

Environment

DX NetOps Spectrum: Any version

Resolution

This is the spoken expression: Generate alarm only when the ospfNbrState value is different from 4 and 8.

This is real expression: ((ospfNbrState.#!=4)&(ospfNbrState.#!=8))

Note that the expression is evaluating the same instance (#).

Suppose the ospfNbrState value is 1: TRUE & TRUE = TRUE (generate alarm)

Suppose the ospfNbrState value is 2: TRUE & TRUE = TRUE (generate alarm)

Suppose the ospfNbrState value is 3: TRUE & TRUE = TRUE (generate alarm)

Suppose the ospfNbrState value is 4: FALSE & TRUE = FALSE (clear alarm)

Suppose the ospfNbrState value is 5: TRUE & TRUE = TRUE (generate alarm)

Suppose the ospfNbrState value is 6: TRUE & TRUE = TRUE (generate alarm)

Suppose the ospfNbrState value is 7: TRUE & TRUE = TRUE (generate alarm)

Suppose the ospfNbrState value is 8: TRUE & FALSE = FALSE (clear alarm)

 

1) In the Expression tab:

• Name: ospfNbrState_pollingAgent
• Data Type: Boolean
• Expression: ((ospfNbrState.#!=4)&(ospfNbrState.#!=8))
• Instance: All

Only when the ospfNbrState value is different (!=) from 4 and (&) 8 an alarm should be generated.

2) In the Properties tab:

• Active By Default: Unchecked
• Evaluation: Evaluating By Polling - Polling Interval 300 seconds
• Model Type: Modify watch for model type OSPF2RtrApp
• Make Inheritable: Checked

3) In the Threshold tab:

• Attach a Threshold: Checked
• Threshold violated if value == TRUE
• Threshold reset if value != TRUE
• Notification: Generate Alarm