[  494.589707] netdevsim netdevsim412 eni412np1: renamed from eth0
[  494.686473] netdevsim netdevsim720 eni720np1: renamed from eth1
[  494.902897] Could not find device with ifindex 2000 in netnsfd 11
[  494.903229] Could not find netns with fd: 2000
[  494.903335] Cannot link a netdevsim to itself
[  494.903448] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).