[  458.873198] netdevsim netdevsim468 eni468np1: renamed from eth0
[  458.874191] netdevsim netdevsim644 eni644np1: renamed from eth1
[  458.959500] Could not find device with ifindex 2000 in netnsfd 11
[  458.959612] Could not find netns with fd: 2000
[  458.959665] Cannot link a netdevsim to itself
[  458.959716] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).