[  508.453754] netdevsim netdevsim343 eni343np1: renamed from eth0
[  508.551066] netdevsim netdevsim593 eni593np1: renamed from eth1
[  508.776222] Could not find device with ifindex 2000 in netnsfd 11
[  508.776398] Could not find netns with fd: 2000
[  508.776476] Cannot link a netdevsim to itself
[  508.776568] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).