[  487.966493] netdevsim netdevsim261 eni261np1: renamed from eth0
[  487.967152] netdevsim netdevsim719 eni719np1: renamed from eth1
[  488.064179] Could not find device with ifindex 2000 in netnsfd 11
[  488.064281] Could not find netns with fd: 2000
[  488.064324] Cannot link a netdevsim to itself
[  488.064379] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).