[  484.722110] netdevsim netdevsim513 eni513np1: renamed from eth1
[  484.823499] netdevsim netdevsim304 eni304np1: renamed from eth0
[  485.166078] Could not find device with ifindex 2000 in netnsfd 11
[  485.166272] Could not find netns with fd: 2000
[  485.166375] Cannot link a netdevsim to itself
[  485.166509] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).