[  473.472544] netdevsim netdevsim266 eni266np1: renamed from eth0
[  473.473086] netdevsim netdevsim625 eni625np1: renamed from eth1
[  473.547785] Could not find device with ifindex 2000 in netnsfd 11
[  473.547933] Could not find netns with fd: 2000
[  473.548034] Cannot link a netdevsim to itself
[  473.548143] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).