[ 1242.124086][T12783] netdevsim netdevsim261 eni261np1: renamed from eth0
[ 1242.258906][T12780] netdevsim netdevsim616 eni616np1: renamed from eth1
[ 1244.833913][T12776] Could not find device with ifindex 2000 in netnsfd 11
[ 1244.835037][T12776] Could not find netns with fd: 2000
[ 1244.835930][T12776] Cannot link a netdevsim to itself
[ 1244.839004][T12776] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).