[  510.973432] netdevsim netdevsim703 eni703np1: renamed from eth1
[  511.071119] netdevsim netdevsim419 eni419np1: renamed from eth0
[  511.299746] Could not find device with ifindex 2000 in netnsfd 11
[  511.299952] Could not find netns with fd: 2000
[  511.300041] Cannot link a netdevsim to itself
[  511.300152] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).