[ 1082.475418][ T8140] netdevsim netdevsim256 eni256np1: renamed from eth0 [ 1082.598476][ T8141] netdevsim netdevsim660 eni660np1: renamed from eth1 [ 1086.349973][ T8132] Could not find device with ifindex 2000 in netnsfd 11 [ 1086.350761][ T8132] Could not find netns with fd: 2000 [ 1086.351424][ T8132] Cannot link a netdevsim to itself [ 1086.352241][ T8132] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).