[  482.373122] netdevsim netdevsim500 eni500np1: renamed from eth0
[  482.475343] netdevsim netdevsim737 eni737np1: renamed from eth1
[  482.832299] Could not find device with ifindex 2000 in netnsfd 11
[  482.832469] Could not find netns with fd: 2000
[  482.832566] Cannot link a netdevsim to itself
[  482.832703] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).