[  479.971793] netdevsim netdevsim673 eni673np1: renamed from eth1
[  480.071850] netdevsim netdevsim373 eni373np1: renamed from eth0
[  480.405997] Could not find device with ifindex 2000 in netnsfd 11
[  480.406132] Could not find netns with fd: 2000
[  480.406203] Cannot link a netdevsim to itself
[  480.406294] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).