[  508.959656] netdevsim netdevsim685 eni685np1: renamed from eth1
[  509.057228] netdevsim netdevsim326 eni326np1: renamed from eth0
[  509.267588] Could not find device with ifindex 2000 in netnsfd 11
[  509.267749] Could not find netns with fd: 2000
[  509.267832] Cannot link a netdevsim to itself
[  509.267930] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).