[ 1263.449237][T12747] netdevsim netdevsim661 eni661np1: renamed from eth1
[ 1263.506564][T12744] netdevsim netdevsim399 eni399np1: renamed from eth0
[ 1266.283937][T12734] Could not find device with ifindex 2000 in netnsfd 11
[ 1266.286096][T12734] Could not find netns with fd: 2000
[ 1266.286987][T12734] Cannot link a netdevsim to itself
[ 1266.288063][T12734] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).