[ 1303.321214][T11143] netdevsim netdevsim312 eni312np1: renamed from eth0 [ 1303.337318][T11145] netdevsim netdevsim591 eni591np1: renamed from eth1 [ 1306.938166][T11135] Could not find device with ifindex 2000 in netnsfd 11 [ 1306.939292][T11135] Could not find netns with fd: 2000 [ 1306.940290][T11135] Cannot link a netdevsim to itself [ 1306.941586][T11135] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).