[  458.124244] netdevsim netdevsim301 eni301np1: renamed from eth0
[  458.124850] netdevsim netdevsim609 eni609np1: renamed from eth1
[  458.207076] Could not find device with ifindex 2000 in netnsfd 11
[  458.207172] Could not find netns with fd: 2000
[  458.207218] Cannot link a netdevsim to itself
[  458.207269] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).