[  479.192714] netdevsim netdevsim439 eni439np1: renamed from eth0
[  479.193732] netdevsim netdevsim691 eni691np1: renamed from eth1
[  479.274904] Could not find device with ifindex 2000 in netnsfd 11
[  479.275013] Could not find netns with fd: 2000
[  479.275060] Cannot link a netdevsim to itself
[  479.275112] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).