[ 1011.267065][T12067] netdevsim netdevsim714 eni714np1: renamed from eth1 [ 1011.363849][T12069] netdevsim netdevsim457 eni457np1: renamed from eth0 [ 1013.170288][T12554] Could not find device with ifindex 2000 in netnsfd 11 [ 1013.171247][T12554] Could not find netns with fd: 2000 [ 1013.172076][T12554] Cannot link a netdevsim to itself [ 1013.172974][T12554] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).