[  966.952817][T12743] netdevsim netdevsim515 eni515np1: renamed from eth1
[  967.070028][T12744] netdevsim netdevsim464 eni464np1: renamed from eth0
[  968.829326][T12736] Could not find device with ifindex 2000 in netnsfd 11
[  968.830285][T12736] Could not find netns with fd: 2000
[  968.830962][T12736] Cannot link a netdevsim to itself
[  968.831690][T12736] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).