[  520.388566] netdevsim netdevsim690 eni690np1: renamed from eth1
[  520.484710] netdevsim netdevsim328 eni328np1: renamed from eth0
[  520.748940] Could not find device with ifindex 2000 in netnsfd 11
[  520.749227] Could not find netns with fd: 2000
[  520.749328] Cannot link a netdevsim to itself
[  520.749442] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).