[  494.018445] netdevsim netdevsim624 eni624np1: renamed from eth1
[  494.113839] netdevsim netdevsim333 eni333np1: renamed from eth0
[  494.348110] Could not find device with ifindex 2000 in netnsfd 11
[  494.348482] Could not find netns with fd: 2000
[  494.348600] Cannot link a netdevsim to itself
[  494.348736] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).