[ 1236.347533][T11150] netdevsim netdevsim321 eni321np1: renamed from eth0
[ 1236.368080][T11149] netdevsim netdevsim662 eni662np1: renamed from eth1
[ 1239.779085][T11142] Could not find device with ifindex 2000 in netnsfd 11
[ 1239.779895][T11142] Could not find netns with fd: 2000
[ 1239.780534][T11142] Cannot link a netdevsim to itself
[ 1239.781242][T11142] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).