[ 1236.132242][T11138] netdevsim netdevsim321 eni321np1: renamed from eth0
[ 1236.201547][T11140] netdevsim netdevsim539 eni539np1: renamed from eth1
[ 1239.591277][T11131] Could not find device with ifindex 2000 in netnsfd 11
[ 1239.591968][T11131] Could not find netns with fd: 2000
[ 1239.592724][T11131] Cannot link a netdevsim to itself
[ 1239.593368][T11131] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).