[ 1224.594009][T11145] netdevsim netdevsim420 eni420np1: renamed from eth0
[ 1224.612293][T11146] netdevsim netdevsim531 eni531np1: renamed from eth1
[ 1228.071880][T11137] Could not find device with ifindex 2000 in netnsfd 11
[ 1228.072651][T11137] Could not find netns with fd: 2000
[ 1228.073544][T11137] Cannot link a netdevsim to itself
[ 1228.074268][T11137] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).