[  488.604295] netdevsim netdevsim551 eni551np1: renamed from eth1
[  488.700041] netdevsim netdevsim304 eni304np1: renamed from eth0
[  488.947711] Could not find device with ifindex 2000 in netnsfd 11
[  488.948070] Could not find netns with fd: 2000
[  488.948174] Cannot link a netdevsim to itself
[  488.948319] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).