[  760.619574][T14457] netdevsim netdevsim273 eni273np1: renamed from eth0
[  760.631356][T14459] netdevsim netdevsim639 eni639np1: renamed from eth1
[  761.225249][T14445] Could not find device with ifindex 2000 in netnsfd 11
[  761.225819][T14445] Could not find netns with fd: 2000
[  761.226430][T14445] Cannot link a netdevsim to itself
[  761.226910][T14445] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).