[  521.881436] netdevsim netdevsim349 eni349np1: renamed from eth0
[  521.978283] netdevsim netdevsim552 eni552np1: renamed from eth1
[  522.229982] Could not find device with ifindex 2000 in netnsfd 11
[  522.230208] Could not find netns with fd: 2000
[  522.230290] Cannot link a netdevsim to itself
[  522.230396] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).