[  523.727121] netdevsim netdevsim573 eni573np1: renamed from eth1
[  523.824725] netdevsim netdevsim464 eni464np1: renamed from eth0
[  524.050387] Could not find device with ifindex 2000 in netnsfd 11
[  524.050593] Could not find netns with fd: 2000
[  524.050699] Cannot link a netdevsim to itself
[  524.050818] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).