[ 1225.085195][T11145] netdevsim netdevsim460 eni460np1: renamed from eth0 [ 1225.211659][T11144] netdevsim netdevsim565 eni565np1: renamed from eth1 [ 1228.737373][T11137] Could not find device with ifindex 2000 in netnsfd 11 [ 1228.738209][T11137] Could not find netns with fd: 2000 [ 1228.738833][T11137] Cannot link a netdevsim to itself [ 1228.739578][T11137] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).