[  473.401382] netdevsim netdevsim298 eni298np1: renamed from eth0
[  473.401784] netdevsim netdevsim741 eni741np1: renamed from eth1
[  473.488839] Could not find device with ifindex 2000 in netnsfd 11
[  473.488933] Could not find netns with fd: 2000
[  473.488977] Cannot link a netdevsim to itself
[  473.489031] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).