[  522.959474] netdevsim netdevsim449 eni449np1: renamed from eth0
[  523.056177] netdevsim netdevsim718 eni718np1: renamed from eth1
[  523.298436] Could not find device with ifindex 2000 in netnsfd 11
[  523.298609] Could not find netns with fd: 2000
[  523.298696] Cannot link a netdevsim to itself
[  523.298818] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).