[  517.363262] netdevsim netdevsim697 eni697np1: renamed from eth1
[  517.460667] netdevsim netdevsim311 eni311np1: renamed from eth0
[  517.666181] Could not find device with ifindex 2000 in netnsfd 11
[  517.666372] Could not find netns with fd: 2000
[  517.666469] Cannot link a netdevsim to itself
[  517.666577] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).