[  454.989053] netdevsim netdevsim297 eni297np1: renamed from eth0
[  454.990124] netdevsim netdevsim613 eni613np1: renamed from eth1
[  455.071850] Could not find device with ifindex 2000 in netnsfd 11
[  455.071950] Could not find netns with fd: 2000
[  455.072014] Cannot link a netdevsim to itself
[  455.072070] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).