[  487.935676] netdevsim netdevsim632 eni632np1: renamed from eth1
[  488.030792] netdevsim netdevsim501 eni501np1: renamed from eth0
[  488.292769] Could not find device with ifindex 2000 in netnsfd 11
[  488.293106] Could not find netns with fd: 2000
[  488.293218] Cannot link a netdevsim to itself
[  488.293330] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).