[  473.819476] netdevsim netdevsim412 eni412np1: renamed from eth0
[  473.820576] netdevsim netdevsim675 eni675np1: renamed from eth0
[  473.910141] Could not find device with ifindex 2000 in netnsfd 11
[  473.910244] Could not find netns with fd: 2000
[  473.910289] Cannot link a netdevsim to itself
[  473.910338] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).