[  457.114099] netdevsim netdevsim415 eni415np1: renamed from eth0
[  457.114679] netdevsim netdevsim740 eni740np1: renamed from eth1
[  457.205379] Could not find device with ifindex 2000 in netnsfd 11
[  457.205528] Could not find netns with fd: 2000
[  457.205634] Cannot link a netdevsim to itself
[  457.205749] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).