51     Get<Mac::Mac>().SetEnabled(true);  in Up()
53     IgnoreError(Get<Utils::ChannelMonitor>().Start());  in Up()
55     Get<MeshForwarder>().Start();  in Up()
60     IgnoreError(Get<Mle::MleRouter>().Enable());  in Up()
61     IgnoreError(Get<Tmf::Agent>().Start());  in Up()
63     IgnoreError(Get<Dns::ServiceDiscovery::Server>().Start());  in Up()
66     IgnoreError(Get<Dns::Client>().Start());  in Up()
69     IgnoreError(Get<Sntp::Client>().Start());  in Up()
71     Get<Notifier>().Signal(kEventThreadNetifStateChanged);  in Up()
82     Get<Dns::Client>().Stop();  in Down()
85     IgnoreError(Get<Sntp::Client>().Stop());  in Down()
88     Get<Dns::ServiceDiscovery::Server>().Stop();  in Down()
90     IgnoreError(Get<Tmf::Agent>().Stop());  in Down()
91     IgnoreError(Get<Mle::MleRouter>().Disable());  in Down()
98     Get<MeshForwarder>().Stop();  in Down()
100     IgnoreError(Get<Utils::ChannelMonitor>().Stop());  in Down()
102     Get<Notifier>().Signal(kEventThreadNetifStateChanged);  in Down()