[  475.386381] netdevsim netdevsim481 eni481np1: renamed from eth0
[  475.387586] netdevsim netdevsim733 eni733np1: renamed from eth0
[  475.476545] Could not find device with ifindex 2000 in netnsfd 11
[  475.476627] Could not find netns with fd: 2000
[  475.476668] Cannot link a netdevsim to itself
[  475.476717] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).