[  456.890219] netdevsim netdevsim264 eni264np1: renamed from eth0
[  456.890594] netdevsim netdevsim679 eni679np1: renamed from eth1
[  456.991536] Could not find device with ifindex 2000 in netnsfd 11
[  456.991723] Could not find netns with fd: 2000
[  456.991850] Cannot link a netdevsim to itself
[  456.991974] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).