[ 1341.436979][T12195] netdevsim netdevsim321 eni321np1: renamed from eth0
[ 1341.468616][T12196] netdevsim netdevsim541 eni541np1: renamed from eth1
[ 1345.093598][T12188] Could not find device with ifindex 2000 in netnsfd 11
[ 1345.094437][T12188] Could not find netns with fd: 2000
[ 1345.095083][T12188] Cannot link a netdevsim to itself
[ 1345.095948][T12188] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).