[ 1051.718308][T12757] netdevsim netdevsim556 eni556np1: renamed from eth1
[ 1051.829450][T12758] netdevsim netdevsim441 eni441np1: renamed from eth0
[ 1053.722071][T12750] Could not find device with ifindex 2000 in netnsfd 11
[ 1053.723085][T12750] Could not find netns with fd: 2000
[ 1053.723755][T12750] Cannot link a netdevsim to itself
[ 1053.724553][T12750] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).