Network Management
Seeing partial LLDP links in NPM rather than full topology
This article discusses the scenario when one can see two parts of the same link separately instead of a single link.
First published date
7/6/2020 12:04 PM
Last published date
7/6/2020 12:04 PM
Overview
Sometimes it can be observed that NPM can see two parts of a link separately instead of seeing a complete link between interfaces.
For Example:
One might see two partial links:
Node A - Interface 1 ----------> Unknown - Node B
Node A - Unknown ----------> Interface 2 - Node B
What one expects to see is:
Node A - Interface 1 ----------> Interface 2 - Node B
For Example:
One might see two partial links:
Node A - Interface 1 ----------> Unknown - Node B
Node A - Unknown ----------> Interface 2 - Node B
What one expects to see is:
Node A - Interface 1 ----------> Interface 2 - Node B
Product section
Network Performance Monitor
Cause
Unknown
Resolution
1) Take a backup of the following file (copy to desktop for example):
C:\Program Files (x86)\SolarWinds\Orion\Topology\Calculation.cfg (assuming default install location)
2) Edit C:\Program Files (x86)\SolarWinds\Orion\Topology\Calculation.cfg
3) Change
<ProviderConfig Key="ComplementaryLinksSelectorL2" Value="false"/>
To
<ProviderConfig Key="ComplementaryLinksSelectorL2" Value="true"/>
4) Save the file
Once this is done,
1) Navigate to the Manage Nodes page
2) Select the node
3) From the Toolbar select More -> Update Topology
4) Wait some time for the Topology to update
Verify that the link appears correctly.
C:\Program Files (x86)\SolarWinds\Orion\Topology\Calculation.cfg (assuming default install location)
2) Edit C:\Program Files (x86)\SolarWinds\Orion\Topology\Calculation.cfg
3) Change
<ProviderConfig Key="ComplementaryLinksSelectorL2" Value="false"/>
To
<ProviderConfig Key="ComplementaryLinksSelectorL2" Value="true"/>
4) Save the file
Once this is done,
1) Navigate to the Manage Nodes page
2) Select the node
3) From the Toolbar select More -> Update Topology
4) Wait some time for the Topology to update
Verify that the link appears correctly.