Dear Sir/Madam, I am Md Zahidul Islam, a master student of M.Eng Information Technology at Frankfurt Unuversity of Applied science. I am currently working on my Individual Master Project MPLS LDP forwarding with the CORE emulator. I am using Ubuntu 20.4 LTS and FRR version 8.5-dev. I have set up ospf as a core routing protocol to forward LDP which is working fine with FRR. But when I write mpls ldp command it shows ldpd is not running. In the CORE emulator ldp is not developed by default in FRR so I tried to customize the ldpp service on the CORE emulator from FRR directories but still it is not working. I am not able to find the correct solution for this. Could you please let me know any solution for this if there are any changes or latest updated bugs you have fixed. I am not able to find any solution on github. For your reference, I am attaching some screenshots with a pdf file. Kind regards, Md Zahidul Islam