[  484.797882] netdevsim netdevsim419 eni419np1: renamed from eth0
[  484.825320] netdevsim netdevsim749 eni749np1: renamed from eth1
[  485.753954] Could not find device with ifindex 2000 in netnsfd 11
[  485.754125] Could not find netns with fd: 2000
[  485.754223] Cannot link a netdevsim to itself
[  485.754349] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).