[  479.092731] netdevsim netdevsim340 eni340np1: renamed from eth0
[  479.193304] netdevsim netdevsim740 eni740np1: renamed from eth1
[  479.510779] Could not find device with ifindex 2000 in netnsfd 11
[  479.510955] Could not find netns with fd: 2000
[  479.511066] Cannot link a netdevsim to itself
[  479.511183] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).