[  776.418872][T14751] netdevsim netdevsim422 eni422np1: renamed from eth0
[  776.437284][T14753] netdevsim netdevsim517 eni517np1: renamed from eth1
[  777.026385][T14739] Could not find device with ifindex 2000 in netnsfd 11
[  777.026937][T14739] Could not find netns with fd: 2000
[  777.027311][T14739] Cannot link a netdevsim to itself
[  777.027733][T14739] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).