[  487.568666] netdevsim netdevsim355 eni355np1: renamed from eth0
[  487.569081] netdevsim netdevsim553 eni553np1: renamed from eth1
[  487.664871] Could not find device with ifindex 2000 in netnsfd 11
[  487.664960] Could not find netns with fd: 2000
[  487.665005] Cannot link a netdevsim to itself
[  487.665055] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).