[  491.002872] netdevsim netdevsim420 eni420np1: renamed from eth0
[  491.003176] netdevsim netdevsim575 eni575np1: renamed from eth1
[  491.085138] Could not find device with ifindex 2000 in netnsfd 11
[  491.085277] Could not find netns with fd: 2000
[  491.085380] Cannot link a netdevsim to itself
[  491.085500] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).