[  489.511792] netdevsim netdevsim601 eni601np1: renamed from eth1
[  489.608773] netdevsim netdevsim264 eni264np1: renamed from eth0
[  489.840052] Could not find device with ifindex 2000 in netnsfd 11
[  489.840311] Could not find netns with fd: 2000
[  489.840399] Cannot link a netdevsim to itself
[  489.840499] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).