[  489.351207] netdevsim netdevsim549 eni549np1: renamed from eth1
[  489.452033] netdevsim netdevsim461 eni461np1: renamed from eth0
[  489.769120] Could not find device with ifindex 2000 in netnsfd 11
[  489.769285] Could not find netns with fd: 2000
[  489.769368] Cannot link a netdevsim to itself
[  489.769460] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).