[  487.524809] netdevsim netdevsim632 eni632np1: renamed from eth1
[  487.621923] netdevsim netdevsim281 eni281np1: renamed from eth0
[  487.835450] Could not find device with ifindex 2000 in netnsfd 11
[  487.835719] Could not find netns with fd: 2000
[  487.835794] Cannot link a netdevsim to itself
[  487.835879] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).