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Home > Success Center > Network Performance Monitor (NPM) > NPM - Knowledgebase Articles > Duplicate interfaces appear when listing resources on Juniper NetScreen devices

Duplicate interfaces appear when listing resources on Juniper NetScreen devices

Created by Mariusz Handke, last modified by MindTouch on Jun 23, 2016

Views: 1,408 Votes: 1 Revisions: 4

Overview

Duplicate or additional sub-interfaces of Juniper NetScreen devices appear when listing node resources.

Interfaces during List Resources on Juniper NetScreen

Environment

  • NPM 11.5 and later
  • Juniper NetScreen devices

Cause 

Duplicate interfaces or sub-interfaces are not polled from ifTable (1.3.6.1.2.1.2.2) as common interfaces are but from nsIfTable (1.3.6.1.4.1.3224.9.1) and nsIfFlowTable (1.3.6.1.4.1.3224.9.3) which are maintained by Juniper NetScreen.

Resolution

Create new SNMP user on the Juniper device without access to 1.3.6.1.4.1.3224.9.1 sub-tree and use this new SNMP user for polling in NPM.

 

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