[  522.105366] netdevsim netdevsim397 eni397np1: renamed from eth0
[  522.202560] netdevsim netdevsim724 eni724np1: renamed from eth1
[  522.440862] Could not find device with ifindex 2000 in netnsfd 11
[  522.441136] Could not find netns with fd: 2000
[  522.441284] Cannot link a netdevsim to itself
[  522.441446] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).