[  455.461455] netdevsim netdevsim363 eni363np1: renamed from eth0
[  455.462526] netdevsim netdevsim537 eni537np1: renamed from eth0
[  455.550844] Could not find device with ifindex 2000 in netnsfd 11
[  455.550920] Could not find netns with fd: 2000
[  455.550958] Cannot link a netdevsim to itself
[  455.551005] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).