[  493.158343] netdevsim netdevsim626 eni626np1: renamed from eth1
[  493.254916] netdevsim netdevsim480 eni480np1: renamed from eth0
[  493.506482] Could not find device with ifindex 2000 in netnsfd 11
[  493.506854] Could not find netns with fd: 2000
[  493.506942] Cannot link a netdevsim to itself
[  493.507048] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).