[ 1236.921526][T11140] netdevsim netdevsim684 eni684np1: renamed from eth1
[ 1236.935327][T11141] netdevsim netdevsim420 eni420np1: renamed from eth0
[ 1240.338365][T11133] Could not find device with ifindex 2000 in netnsfd 11
[ 1240.339137][T11133] Could not find netns with fd: 2000
[ 1240.339706][T11133] Cannot link a netdevsim to itself
[ 1240.340360][T11133] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).