[ 1222.176786][T12603] netdevsim netdevsim756 eni756np1: renamed from eth1
[ 1222.305213][T12602] netdevsim netdevsim505 eni505np1: renamed from eth0
[ 1224.874021][T12594] Could not find device with ifindex 2000 in netnsfd 11
[ 1224.875791][T12594] Could not find netns with fd: 2000
[ 1224.877157][T12594] Cannot link a netdevsim to itself
[ 1224.879048][T12594] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).