[ 1021.806440][T12484] netdevsim netdevsim577 eni577np1: renamed from eth1
[ 1021.907466][T12482] netdevsim netdevsim297 eni297np1: renamed from eth0
[ 1023.810347][T12475] Could not find device with ifindex 2000 in netnsfd 11
[ 1023.811423][T12475] Could not find netns with fd: 2000
[ 1023.812195][T12475] Cannot link a netdevsim to itself
[ 1023.813188][T12475] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).