[  835.633276][T16087] netdevsim netdevsim354 eni354np1: renamed from eth0
[  835.649880][T16089] netdevsim netdevsim516 eni516np1: renamed from eth1
[  836.263746][T16074] Could not find device with ifindex 2000 in netnsfd 11
[  836.264522][T16074] Could not find netns with fd: 2000
[  836.265071][T16074] Cannot link a netdevsim to itself
[  836.265684][T16074] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).