[  523.110374] netdevsim netdevsim296 eni296np1: renamed from eth0
[  523.207188] netdevsim netdevsim611 eni611np1: renamed from eth1
[  523.419748] Could not find device with ifindex 2000 in netnsfd 11
[  523.419965] Could not find netns with fd: 2000
[  523.420061] Cannot link a netdevsim to itself
[  523.420183] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).