[  516.092977] netdevsim netdevsim716 eni716np1: renamed from eth1
[  516.188120] netdevsim netdevsim499 eni499np1: renamed from eth0
[  516.416303] Could not find device with ifindex 2000 in netnsfd 11
[  516.416547] Could not find netns with fd: 2000
[  516.416654] Cannot link a netdevsim to itself
[  516.416784] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).