[  777.696213][T14306] netdevsim netdevsim401 eni401np1: renamed from eth0
[  777.720840][T14308] netdevsim netdevsim647 eni647np1: renamed from eth1
[  778.619050][T14294] Could not find device with ifindex 2000 in netnsfd 11
[  778.619814][T14294] Could not find netns with fd: 2000
[  778.620367][T14294] Cannot link a netdevsim to itself
[  778.621036][T14294] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).