[  482.109158] netdevsim netdevsim561 eni561np1: renamed from eth1
[  482.209939] netdevsim netdevsim507 eni507np1: renamed from eth0
[  482.573575] Could not find device with ifindex 2000 in netnsfd 11
[  482.573727] Could not find netns with fd: 2000
[  482.573812] Cannot link a netdevsim to itself
[  482.573910] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).