ðɪs tˈæsk ɪz pɚfˈɔːɹmd baɪ ðə nˈɛtwɜːk skˈɛdʒuːlɚ, wˌɪtʃ fɔːɹ ðɪs pˈɜːpəs jˈuːsᵻz vˈɛɹiəs ˈælɡɚɹˌɪθəmz sˈʌtʃ ɐz ɹˈændəm ˈɜːli dɪtˈɛkʃən ˌɑːɹɹˌiːdˈiː, ɛksplˈɪsɪt kəndʒˈɛstʃən nˌoʊɾɪfɪkˈeɪʃən ˌiːsˌiːˈɛn, ɔːɹ kəntɹˈoʊld dᵻlˈeɪ kˈoʊ dˈɛl.
This task is performed by the network scheduler, which for this purpose uses various algorithms such as random early detection (RED), Explicit Congestion Notification (ECN), or controlled delay (CoDel).