[  488.558991] netdevsim netdevsim337 eni337np1: renamed from eth0
[  488.656874] netdevsim netdevsim702 eni702np1: renamed from eth1
[  488.842828] Could not find device with ifindex 2000 in netnsfd 11
[  488.842982] Could not find netns with fd: 2000
[  488.843056] Cannot link a netdevsim to itself
[  488.843142] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).