[  522.855210] netdevsim netdevsim516 eni516np1: renamed from eth1
[  522.950976] netdevsim netdevsim350 eni350np1: renamed from eth0
[  523.192367] Could not find device with ifindex 2000 in netnsfd 11
[  523.192621] Could not find netns with fd: 2000
[  523.192725] Cannot link a netdevsim to itself
[  523.192849] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).