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Home > Success Center > Network Topology Mapper (NTM) > Network Topology Mapper (NTM) Documentation > NTM Administrator Guide > Show aggregated links (EtherChannel)

Show aggregated links (EtherChannel)

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Updated January 30, 2019

During network discovery, by default, SolarWinds NTM version 2.2 obtains information about links that are aggregated through supported protocols (LACP, PAgp).

For any map created with an earlier version of NTM, to see link aggregation information, you must perform a rescan following the map’s conversion into a scan file. Aggregated links are indicated by a loop around link lines:

File:Success_Center/Reusable_content_-_InfoDev/NTM/View_connection_information/opening_maps_from_earlier.png

To show aggregated links in converted maps:

  1. Open Calculation.cfg (C:\ProgramData\Solarwinds\Network Topology Mapper\Configs) in a text editor.
  2. Find the ResultProcessors group at the bottom of the file.
    
    

    <ResultProcessors>

    <string>CalculationNodesResultProcessor</string>

    <string>L2LinksResultProcessor</string>

    <string>L3LinksResultProcessor</string>

    ...

    </ResultProcessors>

  3. Add EtherchannelLinksProcessor as a string element.
    
    

    <ResultProcessors>

    <string>CalculationNodesResultProcessor</string>

    <string>L2LinksResultProcessor</string>

    <string>L3LinksResultProcessor</string>

    <string>EtherchannelLinksProcessor</string>

    ...

    </ResultProcessors>

  4. Save the file.
  5. With the appropriate scan file open, click Rescan and follow the prompts.
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