WLAN Data Link Layer

Ana amfani da Layer mahada na WLAN azaman maɓallin maɓalli don watsa bayanai. Don fahimtar WLAN, kuna buƙatar saninsa dalla-dalla. Ta hanyar bayani kamar haka:
A cikin ka'idar IEEE 802.11, MAC sublayer ta ƙunshi hanyoyin samun damar kafofin watsa labarai na DCF da PCF:
Ma'anar DCF: Ayyukan Haɗin kai Rarraba
Yayin da DCF shine hanyar samun dama ta asali na IEEE 802.11 MAC, wanda ke ɗaukar fasahar CSMA/CA kuma yana cikin hanyar gasa, lokacin da wannan kumburi ya aika bayanai, zai saka idanu akan tashar. Sai kawai idan tashar ba ta da aiki za ta iya aika bayanai. Da zarar tashar ba ta aiki, kumburin zai jira takamaiman tazara tsakanin DIFS.
Idan ba a ji watsa wasu nodes ba kafin ƙarshen DIFS, ana ƙididdige lokacin dawowa bazuwar, wanda yayi daidai da saita mai ƙidayar lokacin dawowa;
Kullin yana gano tashar a duk lokacin da ta sami lokaci: idan ta gano cewa tashar ba ta da aiki, mai ƙidayar baya yana ci gaba da lokaci; in ba haka ba, sauran lokacin mai ƙididdigewa na baya yana daskarewa, kuma kumburin yana jira sake don tashar ta zama mara amfani; bayan lokacin DIFS ya ƙare, kumburi yana ci gaba da ƙidaya daga sauran lokacin; Idan lokacin mai ƙidayar baya ya ragu zuwa sifili, za a aika gabaɗayan firam ɗin bayanai. Wannan shine tsarin gyarawa na watsa bayanai.
PCF: Aikin Haɗin Kai;
PCF tana ba da mai ba da shawara don yin zaɓe ga duk rukunin yanar gizo don aikawa ko karɓar bayanai. Wannan hanya ce mara gasa, don haka karon firam ɗin ba zai faru ba, amma ana iya amfani da shi kawai a cikin cibiyoyin sadarwa na yanki mara waya tare da wasu kayan more rayuwa.
Abin da ke sama shi ne ƙaddamar da Layer Data Link Layer na Shenzhen Haidiwei Optoelectronics Technology Co., Ltd. Shenzhen HDV Phoelectron Technology Co., Ltd. masana'anta ne da ya kware a kayan sadarwar gani, da sadarwarsa.samfurori.