[  473.829312] netdevsim netdevsim411 eni411np1: renamed from eth0
[  473.831877] netdevsim netdevsim747 eni747np1: renamed from eth1
[  473.914050] Could not find device with ifindex 2000 in netnsfd 11
[  473.914134] Could not find netns with fd: 2000
[  473.914177] Cannot link a netdevsim to itself
[  473.914229] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).