[ 1286.491401][T12855] netdevsim netdevsim409 eni409np1: renamed from eth0
[ 1286.502103][T12854] netdevsim netdevsim721 eni721np1: renamed from eth1
[ 1289.034681][T12845] Could not find device with ifindex 2000 in netnsfd 11
[ 1289.036957][T12845] Could not find netns with fd: 2000
[ 1289.037901][T12845] Cannot link a netdevsim to itself
[ 1289.039013][T12845] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).