[  488.461943] netdevsim netdevsim608 eni608np1: renamed from eth1
[  488.558500] netdevsim netdevsim499 eni499np1: renamed from eth0
[  488.779682] Could not find device with ifindex 2000 in netnsfd 11
[  488.780095] Could not find netns with fd: 2000
[  488.780196] Cannot link a netdevsim to itself
[  488.780343] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).