[  784.347650][T14467] netdevsim netdevsim447 eni447np1: renamed from eth0
[  784.367833][T14469] netdevsim netdevsim690 eni690np1: renamed from eth1
[  784.896855][T14455] Could not find device with ifindex 2000 in netnsfd 11
[  784.897417][T14455] Could not find netns with fd: 2000
[  784.897874][T14455] Cannot link a netdevsim to itself
[  784.898378][T14455] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).