[  550.366658] netdevsim netdevsim619 eni619np1: renamed from eth1
[  550.464172] netdevsim netdevsim263 eni263np1: renamed from eth0
[  550.729228] Could not find device with ifindex 2000 in netnsfd 11
[  550.729468] Could not find netns with fd: 2000
[  550.729590] Cannot link a netdevsim to itself
[  550.729731] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).