[ZBX-12688] Wrong trigger thredshold in official template for D-link switches Created: 2017 Sep 06  Updated: 2024 Apr 10  Resolved: 2017 Sep 13

Status: Closed
Project: ZABBIX BUGS AND ISSUES
Component/s: Templates (T)
Affects Version/s: 3.4.1
Fix Version/s: 3.4.2rc1

Type: Incident report Priority: Trivial
Reporter: Vladimir Assignee: Unassigned
Resolution: Duplicate Votes: 0
Labels: Template_Module_Interfaces_SNMPv2
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified
Environment:

Centos 7 x64, Virtual machine

Attachments: JPEG File Graph1.JPG     JPEG File Graph2.JPG     JPEG File Speed.JPG     JPEG File bytes_rcv.JPG     JPEG File bytes_sent.JPG    
Issue Links:
Duplicate
duplicates ZBXNEXT-4099 Network templates 3.4.2 cleanup Closed
Team: Team D
Sprint: Sprint 16

 Description   

I upgraded server to 3.4.1 recently and uploaded your new templates.
I have the problem with the template for D-link switches Template Net D-Link DES_DGS Switch SNMPv2. One of my switches is DGS-3420-28PC.
The problem is in getting alert on triggers concerning high usage. For example, I got alert "Interface 9(): High bandwidth usage >90%" at 11:19 with text "PROBLEM ol-ms-nd-sw0005 | | Interface 9(): High bandwidth usage >90% -> 76.35 Kbps" It's custom action.
I saw the graph Interface 9() Network traffic, and payload is the same as it was in alert. I saw the interface speed and it was 100Mbit/s. Why did I get such an alert? It wasn't true, and traffic was less 1%.

 Comments   
Comment by Vitaly Zhuravlev [ 2017 Sep 06 ]

Thanks for reporting,
Sorry , screenshots are from Inteface 2 and 9. Interface 2 also had this problem?
Can you show operational status of interface 9, speed and Bits sent/received in the period it happened?

Comment by Vladimir [ 2017 Sep 06 ]

Sorry, I made a mistake. Screenshots are attached.

Comment by Vitaly Zhuravlev [ 2017 Sep 06 ]

Thats probably related to speed was 0(because interface was down) and Bits sent/received updated, but speed still was 0. Trigger should not fire in that case, need to update trigger expression.

Comment by Vitaly Zhuravlev [ 2017 Sep 09 ]

Suggested fix:
additionally add 

and {Template Module Interfaces SNMPvX:net.if.speed[ifHighSpeed.{#SNMPINDEX}].last()}>0

to the trigger expression.

Comment by Vladislavs Sokurenko [ 2017 Sep 13 ]

will be fixed as part of ZBXNEXT-4099

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