[  786.320010][T14571] netdevsim netdevsim497 eni497np1: renamed from eth0
[  786.339695][T14573] netdevsim netdevsim620 eni620np1: renamed from eth1
[  786.988429][T14559] Could not find device with ifindex 2000 in netnsfd 11
[  786.989078][T14559] Could not find netns with fd: 2000
[  786.989553][T14559] Cannot link a netdevsim to itself
[  786.990082][T14559] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).