[  487.417052] netdevsim netdevsim632 eni632np1: renamed from eth1
[  487.514992] netdevsim netdevsim444 eni444np1: renamed from eth0
[  487.709182] Could not find device with ifindex 2000 in netnsfd 11
[  487.709348] Could not find netns with fd: 2000
[  487.709434] Cannot link a netdevsim to itself
[  487.709542] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).