[  484.832222] netdevsim netdevsim263 eni263np1: renamed from eth0
[  484.933034] netdevsim netdevsim535 eni535np1: renamed from eth1
[  485.314929] Could not find device with ifindex 2000 in netnsfd 11
[  485.315068] Could not find netns with fd: 2000
[  485.315159] Cannot link a netdevsim to itself
[  485.315246] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).