[ 1322.354344][T12072] netdevsim netdevsim706 eni706np1: renamed from eth1 [ 1322.356959][T12073] netdevsim netdevsim416 eni416np1: renamed from eth0 [ 1325.969154][T12065] Could not find device with ifindex 2000 in netnsfd 11 [ 1325.970031][T12065] Could not find netns with fd: 2000 [ 1325.971040][T12065] Cannot link a netdevsim to itself [ 1325.972249][T12065] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).