[  487.771014] netdevsim netdevsim468 eni468np1: renamed from eth0
[  487.774132] netdevsim netdevsim577 eni577np1: renamed from eth1
[  487.877320] Could not find device with ifindex 2000 in netnsfd 11
[  487.877462] Could not find netns with fd: 2000
[  487.877516] Cannot link a netdevsim to itself
[  487.877587] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).