[  488.449395] netdevsim netdevsim374 eni374np1: renamed from eth0
[  488.449667] netdevsim netdevsim727 eni727np1: renamed from eth1
[  488.541951] Could not find device with ifindex 2000 in netnsfd 11
[  488.542058] Could not find netns with fd: 2000
[  488.542117] Cannot link a netdevsim to itself
[  488.542185] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).