[  516.392085] netdevsim netdevsim611 eni611np1: renamed from eth1
[  516.490027] netdevsim netdevsim258 eni258np1: renamed from eth0
[  516.696268] Could not find device with ifindex 2000 in netnsfd 11
[  516.696454] Could not find netns with fd: 2000
[  516.696545] Cannot link a netdevsim to itself
[  516.696664] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).