[  508.691325] netdevsim netdevsim334 eni334np1: renamed from eth0
[  508.789535] netdevsim netdevsim635 eni635np1: renamed from eth1
[  508.993990] Could not find device with ifindex 2000 in netnsfd 11
[  508.994139] Could not find netns with fd: 2000
[  508.994224] Cannot link a netdevsim to itself
[  508.994314] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).