[ 1233.108824][T12807] netdevsim netdevsim720 eni720np1: renamed from eth1
[ 1233.200644][T12809] netdevsim netdevsim490 eni490np1: renamed from eth0
[ 1235.688537][T12801] Could not find device with ifindex 2000 in netnsfd 11
[ 1235.689729][T12801] Could not find netns with fd: 2000
[ 1235.690746][T12801] Cannot link a netdevsim to itself
[ 1235.692047][T12801] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).