[  495.065430] netdevsim netdevsim537 eni537np1: renamed from eth1
[  495.162104] netdevsim netdevsim334 eni334np1: renamed from eth0
[  495.411768] Could not find device with ifindex 2000 in netnsfd 11
[  495.412081] Could not find netns with fd: 2000
[  495.412155] Cannot link a netdevsim to itself
[  495.412254] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).