Submit a ticketCall us

Don’t fall victim to a ransomware attack
Backups are helpful, but sometimes that’s not enough to protect your business against ransomware. At our live webcast we will discuss how to protect against ransomware attacks with SolarWinds® Patch Manager and how to leverage log data to detect ransomware. Register now for our live webcast.

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

Tags

Classifications

Public