[  456.283488] netdevsim netdevsim377 eni377np1: renamed from eth0
[  456.283779] netdevsim netdevsim652 eni652np1: renamed from eth1
[  456.368126] Could not find device with ifindex 2000 in netnsfd 11
[  456.368225] Could not find netns with fd: 2000
[  456.368271] Cannot link a netdevsim to itself
[  456.368320] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).