[  486.433236] netdevsim netdevsim554 eni554np1: renamed from eth1
[  486.529252] netdevsim netdevsim316 eni316np1: renamed from eth0
[  486.728198] Could not find device with ifindex 2000 in netnsfd 11
[  486.728545] Could not find netns with fd: 2000
[  486.728635] Cannot link a netdevsim to itself
[  486.728732] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).