[ 1042.640206][T12585] netdevsim netdevsim740 eni740np1: renamed from eth1
[ 1042.709406][T12588] netdevsim netdevsim510 eni510np1: renamed from eth0
[ 1044.524238][T12580] Could not find device with ifindex 2000 in netnsfd 11
[ 1044.525235][T12580] Could not find netns with fd: 2000
[ 1044.525885][T12580] Cannot link a netdevsim to itself
[ 1044.526671][T12580] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).