[  488.910050] netdevsim netdevsim609 eni609np1: renamed from eth1
[  489.007481] netdevsim netdevsim288 eni288np1: renamed from eth0
[  489.243238] Could not find device with ifindex 2000 in netnsfd 11
[  489.243613] Could not find netns with fd: 2000
[  489.243733] Cannot link a netdevsim to itself
[  489.243849] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).