[ 1260.129479][T12780] netdevsim netdevsim390 eni390np1: renamed from eth0
[ 1260.239597][T12779] netdevsim netdevsim544 eni544np1: renamed from eth1
[ 1263.215320][T12768] Could not find device with ifindex 2000 in netnsfd 11
[ 1263.216544][T12768] Could not find netns with fd: 2000
[ 1263.217450][T12768] Cannot link a netdevsim to itself
[ 1263.218588][T12768] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).