[  487.466959] netdevsim netdevsim646 eni646np1: renamed from eth1
[  487.567153] netdevsim netdevsim354 eni354np1: renamed from eth0
[  487.905003] Could not find device with ifindex 2000 in netnsfd 11
[  487.905129] Could not find netns with fd: 2000
[  487.905192] Cannot link a netdevsim to itself
[  487.905271] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).