[  473.581808] netdevsim netdevsim511 eni511np1: renamed from eth0
[  473.582296] netdevsim netdevsim713 eni713np1: renamed from eth1
[  473.672124] Could not find device with ifindex 2000 in netnsfd 11
[  473.672208] Could not find netns with fd: 2000
[  473.672256] Cannot link a netdevsim to itself
[  473.672306] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).