[  754.991381][T14591] netdevsim netdevsim500 eni500np1: renamed from eth0
[  755.005530][T14593] netdevsim netdevsim615 eni615np1: renamed from eth1
[  755.547797][T14579] Could not find device with ifindex 2000 in netnsfd 11
[  755.548452][T14579] Could not find netns with fd: 2000
[  755.548822][T14579] Cannot link a netdevsim to itself
[  755.549256][T14579] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).