[ 1222.195176][T12780] netdevsim netdevsim663 eni663np1: renamed from eth1
[ 1222.314135][T12782] netdevsim netdevsim509 eni509np1: renamed from eth0
[ 1224.967848][T12774] Could not find device with ifindex 2000 in netnsfd 11
[ 1224.969729][T12774] Could not find netns with fd: 2000
[ 1224.971360][T12774] Cannot link a netdevsim to itself
[ 1224.973226][T12774] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).