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Home > Success Center > Network Performance Monitor (NPM) > Mac Address Flap: create report

Mac Address Flap: create report

Table of contents

Updated August 25, 2016

Overview

MAC Address Flap is a common issue in a switching environment. After enabling Logging on a switch, the following message will display indicating a Mac Address Flap:

 

*Oct 20 11:48:26.254: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.0000.0011 in vlan 1001 is flapping between port Gi0/23 and port Gi0/15
*Oct 20 11:48:41.286: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.0000.0011 in vlan 1001 is flapping between port Gi0/23 and port Gi0/15
*Oct 20 11:48:56.286: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.0000.0011 in vlan 1001 is flapping between port Gi0/15 and port Gi0/23
*Oct 20 11:49:11.286: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.0000.0011 in vlan 1001 is flapping between port Gi0/15 and port Gi0/23
*Oct 20 11:49:26.318: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.0000.0011 in vlan 1001 is flapping between port Gi0/23 and port Gi0/15

Environment

  • All NPM versions
  • All UDT versions

Steps

MAC Flap report can be generated based on Syslog Messages.Ensure that syslog is enabled on the nodes and that they are forwarding their syslog messages to the Orion Server

 

Via Web Based Report

 

1. Select Custom Table.

 

 

 

2. Continue adding your target columns to provide additional details on the report.

 

 

 

Last modified
18:56, 24 Aug 2016

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