[ 1300.953375][T13044] netdevsim netdevsim521 eni521np1: renamed from eth1
[ 1301.008113][T13047] netdevsim netdevsim284 eni284np1: renamed from eth0
[ 1303.682051][T13035] Could not find device with ifindex 2000 in netnsfd 11
[ 1303.684495][T13035] Could not find netns with fd: 2000
[ 1303.685816][T13035] Cannot link a netdevsim to itself
[ 1303.687420][T13035] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).