[ 1038.480451][T12752] netdevsim netdevsim321 eni321np1: renamed from eth0
[ 1038.597978][T12750] netdevsim netdevsim517 eni517np1: renamed from eth1
[ 1040.587077][T12744] Could not find device with ifindex 2000 in netnsfd 11
[ 1040.588098][T12744] Could not find netns with fd: 2000
[ 1040.588793][T12744] Cannot link a netdevsim to itself
[ 1040.589579][T12744] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).