[ 1230.731209][T11137] netdevsim netdevsim660 eni660np1: renamed from eth1
[ 1230.738358][T11139] netdevsim netdevsim450 eni450np1: renamed from eth0
[ 1234.116558][T11131] Could not find device with ifindex 2000 in netnsfd 11
[ 1234.117313][T11131] Could not find netns with fd: 2000
[ 1234.117875][T11131] Cannot link a netdevsim to itself
[ 1234.118549][T11131] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).