Network speed limiting does not work on SolusVM slave node

Symptoms 

• Network speed limiting for VPS does not work on SolusVM slave KVM node
• The following error is displayed when trying to apply network limit manually on the slave node:

  # php /usr/local/solusvm/includes/trafficloader.php --mode=all --debug=1
  ...
  ADDING QDISC TO eth0
  Cannot find device "eth0"

Cause

Wrong Network Interface(Main network interface) is set up for the slave node in SolusVM.

Resolution

1. Connect to KVM slave node via SSH
2. Find the main interface name using the command:
   

   # brctl show | grep "br"| grep -v intbr| grep -v name| awk {'print $4'}

3. Login to SolusVM admin panel
4. Browse to SolusVM > Nodes  and click Edit icon next to the affected node
   
5. Specify the correct Network Interface from step 2 and click Update Node