[  523.021889] netdevsim netdevsim693 eni693np1: renamed from eth1
[  523.119405] netdevsim netdevsim334 eni334np1: renamed from eth0
[  523.361706] Could not find device with ifindex 2000 in netnsfd 11
[  523.361934] Could not find netns with fd: 2000
[  523.362047] Cannot link a netdevsim to itself
[  523.362171] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).