[  490.107713] netdevsim netdevsim610 eni610np1: renamed from eth1
[  490.207926] netdevsim netdevsim323 eni323np1: renamed from eth0
[  490.564647] Could not find device with ifindex 2000 in netnsfd 11
[  490.564790] Could not find netns with fd: 2000
[  490.564862] Cannot link a netdevsim to itself
[  490.564948] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).