[  478.113473] netdevsim netdevsim373 eni373np1: renamed from eth0
[  478.114025] netdevsim netdevsim755 eni755np1: renamed from eth1
[  478.199445] Could not find device with ifindex 2000 in netnsfd 11
[  478.199534] Could not find netns with fd: 2000
[  478.199573] Cannot link a netdevsim to itself
[  478.199625] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).