[ 1232.388349][T11142] netdevsim netdevsim688 eni688np1: renamed from eth1
[ 1232.391669][T11143] netdevsim netdevsim260 eni260np1: renamed from eth0
[ 1235.714134][T11135] Could not find device with ifindex 2000 in netnsfd 11
[ 1235.714989][T11135] Could not find netns with fd: 2000
[ 1235.715752][T11135] Cannot link a netdevsim to itself
[ 1235.716521][T11135] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).