[ 1235.627191][T12883] netdevsim netdevsim503 eni503np1: renamed from eth0
[ 1235.715220][T12882] netdevsim netdevsim637 eni637np1: renamed from eth1
[ 1238.323144][T12871] Could not find device with ifindex 2000 in netnsfd 11
[ 1238.324301][T12871] Could not find netns with fd: 2000
[ 1238.325138][T12871] Cannot link a netdevsim to itself
[ 1238.326235][T12871] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).