[  510.178816] netdevsim netdevsim687 eni687np1: renamed from eth1
[  510.276591] netdevsim netdevsim293 eni293np1: renamed from eth0
[  510.501179] Could not find device with ifindex 2000 in netnsfd 11
[  510.501423] Could not find netns with fd: 2000
[  510.501540] Cannot link a netdevsim to itself
[  510.501683] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).