[  517.116802] netdevsim netdevsim496 eni496np1: renamed from eth0
[  517.214433] netdevsim netdevsim752 eni752np1: renamed from eth1
[  517.442354] Could not find device with ifindex 2000 in netnsfd 11
[  517.442543] Could not find netns with fd: 2000
[  517.442624] Cannot link a netdevsim to itself
[  517.442744] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).