[  522.288072] netdevsim netdevsim415 eni415np1: renamed from eth0
[  522.384327] netdevsim netdevsim645 eni645np1: renamed from eth1
[  522.640195] Could not find device with ifindex 2000 in netnsfd 11
[  522.640376] Could not find netns with fd: 2000
[  522.640475] Cannot link a netdevsim to itself
[  522.640581] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).