[ 1222.248075][T11139] netdevsim netdevsim456 eni456np1: renamed from eth0
[ 1222.267049][T11138] netdevsim netdevsim606 eni606np1: renamed from eth1
[ 1225.536070][T11131] Could not find device with ifindex 2000 in netnsfd 11
[ 1225.536855][T11131] Could not find netns with fd: 2000
[ 1225.537560][T11131] Cannot link a netdevsim to itself
[ 1225.538242][T11131] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).