[ 1323.340131][T12783] netdevsim netdevsim300 eni300np1: renamed from eth0
[ 1323.349604][T12780] netdevsim netdevsim520 eni520np1: renamed from eth1
[ 1325.960777][T12775] Could not find device with ifindex 2000 in netnsfd 11
[ 1325.976898][T12775] Could not find netns with fd: 2000
[ 1325.977902][T12775] Cannot link a netdevsim to itself
[ 1325.979011][T12775] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).