Description

This article describes a workaround if the SSR sub-interface is throwing the error described in the symptoms.

Symptoms


The journalctl -xe shows below error message:

Failed to start LSB: Bring up/down networking
 
 
When trying to ifup eth4.10, it will return this error "Error: Connection activation failed: No suitable device found for this connection (device eth0 not available because profile is not compatible with device (mismatching interface name))."

Solution

 

Follow the steps to resolve the issue:

 

  • Remove the HWADDR from /etc/sysconfig/network-scripts/ifcfg-eth4 file (eth4 is an example here, we can configure on any active interface)
  • Stop the NetworkManager service: systemctl stop NetworkManager
  • Restart network service: systemctl restart network

 

Now, interface eth4.10 should be UP

 

 

Modification History

2024-07-22 : Article Created

2025-11-17: Minor edits and changed visibility.