[  483.600489] netdevsim netdevsim619 eni619np1: renamed from eth1
[  483.700798] netdevsim netdevsim389 eni389np1: renamed from eth0
[  484.038157] Could not find device with ifindex 2000 in netnsfd 11
[  484.038290] Could not find netns with fd: 2000
[  484.038360] Cannot link a netdevsim to itself
[  484.038445] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).