[  482.450972] netdevsim netdevsim501 eni501np1: renamed from eth0
[  482.552410] netdevsim netdevsim601 eni601np1: renamed from eth1
[  482.912228] Could not find device with ifindex 2000 in netnsfd 11
[  482.912353] Could not find netns with fd: 2000
[  482.912417] Cannot link a netdevsim to itself
[  482.912495] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).