[  762.083261][T14734] netdevsim netdevsim272 eni272np1: renamed from eth0
[  762.096941][T14736] netdevsim netdevsim620 eni620np1: renamed from eth1
[  762.676853][T14722] Could not find device with ifindex 2000 in netnsfd 11
[  762.677401][T14722] Could not find netns with fd: 2000
[  762.677782][T14722] Cannot link a netdevsim to itself
[  762.678235][T14722] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).