[  524.850590] netdevsim netdevsim697 eni697np1: renamed from eth1
[  524.943012] netdevsim netdevsim275 eni275np1: renamed from eth0
[  525.377272] Could not find device with ifindex 2000 in netnsfd 11
[  525.377609] Could not find netns with fd: 2000
[  525.377797] Cannot link a netdevsim to itself
[  525.377978] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).