[  473.059737] netdevsim netdevsim349 eni349np1: renamed from eth0
[  473.060565] netdevsim netdevsim548 eni548np1: renamed from eth1
[  473.135198] Could not find device with ifindex 2000 in netnsfd 11
[  473.135282] Could not find netns with fd: 2000
[  473.135327] Cannot link a netdevsim to itself
[  473.135376] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).