[  450.057987] netdevsim netdevsim538 eni538np1: renamed from eth1
[  450.154468] netdevsim netdevsim347 eni347np1: renamed from eth0
[  450.396022] Could not find device with ifindex 2000 in netnsfd 11
[  450.396426] Could not find netns with fd: 2000
[  450.396523] Cannot link a netdevsim to itself
[  450.396643] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).