[ 1310.195474][T13044] netdevsim netdevsim312 eni312np1: renamed from eth0
[ 1310.260549][T13043] netdevsim netdevsim721 eni721np1: renamed from eth1
[ 1312.869742][T13031] Could not find device with ifindex 2000 in netnsfd 11
[ 1312.871983][T13031] Could not find netns with fd: 2000
[ 1312.872902][T13031] Cannot link a netdevsim to itself
[ 1312.874027][T13031] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).