[ 1018.419096][T12661] netdevsim netdevsim489 eni489np1: renamed from eth0
[ 1018.423353][T12593] netdevsim netdevsim590 eni590np1: renamed from eth1
[ 1020.254230][T12738] Could not find device with ifindex 2000 in netnsfd 11
[ 1020.255601][T12738] Could not find netns with fd: 2000
[ 1020.256673][T12738] Cannot link a netdevsim to itself
[ 1020.257783][T12738] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).