[  485.317791] netdevsim netdevsim468 eni468np1: renamed from eth0
[  485.318300] netdevsim netdevsim635 eni635np1: renamed from eth1
[  485.399525] Could not find device with ifindex 2000 in netnsfd 11
[  485.399598] Could not find netns with fd: 2000
[  485.399639] Cannot link a netdevsim to itself
[  485.399679] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).