[ 1240.319321][T11144] netdevsim netdevsim658 eni658np1: renamed from eth1 [ 1240.329398][T11145] netdevsim netdevsim322 eni322np1: renamed from eth0 [ 1243.904724][T11137] Could not find device with ifindex 2000 in netnsfd 11 [ 1243.905517][T11137] Could not find netns with fd: 2000 [ 1243.906101][T11137] Cannot link a netdevsim to itself [ 1243.906808][T11137] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).