[  539.760769] netdevsim netdevsim277 eni277np1: renamed from eth0
[  539.861794] netdevsim netdevsim655 eni655np1: renamed from eth1
[  540.202550] Could not find device with ifindex 2000 in netnsfd 11
[  540.202691] Could not find netns with fd: 2000
[  540.202776] Cannot link a netdevsim to itself
[  540.202866] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).