[  494.846248] netdevsim netdevsim437 eni437np1: renamed from eth0
[  494.947706] netdevsim netdevsim638 eni638np1: renamed from eth1
[  495.304922] Could not find device with ifindex 2000 in netnsfd 11
[  495.305067] Could not find netns with fd: 2000
[  495.305150] Cannot link a netdevsim to itself
[  495.305258] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).