[  525.737395] netdevsim netdevsim370 eni370np1: renamed from eth0
[  525.834727] netdevsim netdevsim520 eni520np1: renamed from eth1
[  526.057903] Could not find device with ifindex 2000 in netnsfd 11
[  526.058078] Could not find netns with fd: 2000
[  526.058198] Cannot link a netdevsim to itself
[  526.058327] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).