[  523.779280] netdevsim netdevsim626 eni626np1: renamed from eth1
[  523.876970] netdevsim netdevsim372 eni372np1: renamed from eth0
[  524.145398] Could not find device with ifindex 2000 in netnsfd 11
[  524.145591] Could not find netns with fd: 2000
[  524.145690] Cannot link a netdevsim to itself
[  524.145788] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).