[  491.160516] netdevsim netdevsim499 eni499np1: renamed from eth0
[  491.262497] netdevsim netdevsim556 eni556np1: renamed from eth1
[  491.675889] Could not find device with ifindex 2000 in netnsfd 11
[  491.676050] Could not find netns with fd: 2000
[  491.676134] Cannot link a netdevsim to itself
[  491.676233] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).