[  483.147255] netdevsim netdevsim597 eni597np1: renamed from eth1
[  483.247677] netdevsim netdevsim339 eni339np1: renamed from eth0
[  483.640442] Could not find device with ifindex 2000 in netnsfd 11
[  483.640606] Could not find netns with fd: 2000
[  483.640691] Cannot link a netdevsim to itself
[  483.640801] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).