[  576.345106] netdevsim netdevsim650 eni650np1: renamed from eth1
[  576.445653] netdevsim netdevsim403 eni403np1: renamed from eth0
[  576.776800] Could not find device with ifindex 2000 in netnsfd 11
[  576.776937] Could not find netns with fd: 2000
[  576.777005] Cannot link a netdevsim to itself
[  576.777089] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).