[  797.797267][T14628] netdevsim netdevsim507 eni507np1: renamed from eth0
[  797.814103][T14630] netdevsim netdevsim693 eni693np1: renamed from eth1
[  798.578728][T14616] Could not find device with ifindex 2000 in netnsfd 11
[  798.579263][T14616] Could not find netns with fd: 2000
[  798.579627][T14616] Cannot link a netdevsim to itself
[  798.580035][T14616] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).