[  494.886618] netdevsim netdevsim434 eni434np1: renamed from eth0
[  494.887153] netdevsim netdevsim635 eni635np1: renamed from eth1
[  494.986544] Could not find device with ifindex 2000 in netnsfd 11
[  494.986689] Could not find netns with fd: 2000
[  494.986792] Cannot link a netdevsim to itself
[  494.986904] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).