[  524.773781] netdevsim netdevsim747 eni747np1: renamed from eth1
[  524.870201] netdevsim netdevsim262 eni262np1: renamed from eth0
[  525.096024] Could not find device with ifindex 2000 in netnsfd 11
[  525.096215] Could not find netns with fd: 2000
[  525.096300] Cannot link a netdevsim to itself
[  525.096389] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).