[  456.249552] netdevsim netdevsim468 eni468np1: renamed from eth0
[  456.249927] netdevsim netdevsim706 eni706np1: renamed from eth1
[  456.352033] Could not find device with ifindex 2000 in netnsfd 11
[  456.352205] Could not find netns with fd: 2000
[  456.352313] Cannot link a netdevsim to itself
[  456.352426] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).