[ 1268.930457][T12854] netdevsim netdevsim646 eni646np1: renamed from eth1
[ 1269.025562][T12853] netdevsim netdevsim452 eni452np1: renamed from eth0
[ 1271.746543][T12840] Could not find device with ifindex 2000 in netnsfd 11
[ 1271.748465][T12840] Could not find netns with fd: 2000
[ 1271.749388][T12840] Cannot link a netdevsim to itself
[ 1271.750457][T12840] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).