[  521.877416] netdevsim netdevsim281 eni281np1: renamed from eth0
[  521.974131] netdevsim netdevsim547 eni547np1: renamed from eth1
[  522.192269] Could not find device with ifindex 2000 in netnsfd 11
[  522.192463] Could not find netns with fd: 2000
[  522.192550] Cannot link a netdevsim to itself
[  522.192651] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).