[  606.634918][ T9790] netdevsim netdevsim434 eni434np1: renamed from eth0
[  606.648597][ T9791] netdevsim netdevsim715 eni715np1: renamed from eth1
[  607.238488][ T9779] Could not find device with ifindex 2000 in netnsfd 11
[  607.239035][ T9779] Could not find netns with fd: 2000
[  607.239509][ T9779] Cannot link a netdevsim to itself
[  607.240025][ T9779] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).