[ 1300.882425][T12509] netdevsim netdevsim625 eni625np1: renamed from eth1
[ 1300.999099][T12512] netdevsim netdevsim400 eni400np1: renamed from eth0
[ 1303.823040][T12500] Could not find device with ifindex 2000 in netnsfd 11
[ 1303.824496][T12500] Could not find netns with fd: 2000
[ 1303.825764][T12500] Cannot link a netdevsim to itself
[ 1303.827954][T12500] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).