[  473.727708] netdevsim netdevsim422 eni422np1: renamed from eth0
[  473.728379] netdevsim netdevsim532 eni532np1: renamed from eth1
[  473.805198] Could not find device with ifindex 2000 in netnsfd 11
[  473.805288] Could not find netns with fd: 2000
[  473.805333] Cannot link a netdevsim to itself
[  473.805383] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).