[  486.448211] netdevsim netdevsim347 eni347np1: renamed from eth0
[  486.450442] netdevsim netdevsim744 eni744np1: renamed from eth1
[  486.871668] Could not find device with ifindex 2000 in netnsfd 11
[  486.871835] Could not find netns with fd: 2000
[  486.871908] Cannot link a netdevsim to itself
[  486.872003] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).