[  513.277503] netdevsim netdevsim531 eni531np1: renamed from eth1
[  513.374137] netdevsim netdevsim332 eni332np1: renamed from eth0
[  513.592482] Could not find device with ifindex 2000 in netnsfd 11
[  513.592716] Could not find netns with fd: 2000
[  513.592812] Cannot link a netdevsim to itself
[  513.592932] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).