[  762.457086][T14756] netdevsim netdevsim345 eni345np1: renamed from eth0
[  762.487874][T14758] netdevsim netdevsim685 eni685np1: renamed from eth1
[  763.029718][T14744] Could not find device with ifindex 2000 in netnsfd 11
[  763.030242][T14744] Could not find netns with fd: 2000
[  763.030639][T14744] Cannot link a netdevsim to itself
[  763.031073][T14744] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).