[  518.393867] netdevsim netdevsim663 eni663np1: renamed from eth1
[  518.490417] netdevsim netdevsim352 eni352np1: renamed from eth0
[  518.778293] Could not find device with ifindex 2000 in netnsfd 11
[  518.778510] Could not find netns with fd: 2000
[  518.778610] Cannot link a netdevsim to itself
[  518.778721] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).