[  482.262193] netdevsim netdevsim637 eni637np1: renamed from eth1
[  482.362943] netdevsim netdevsim404 eni404np1: renamed from eth0
[  482.696781] Could not find device with ifindex 2000 in netnsfd 11
[  482.696939] Could not find netns with fd: 2000
[  482.697022] Cannot link a netdevsim to itself
[  482.697123] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).