Iphrothokholi yenethiwekhi i-STP, eyaziwa nangokuthi i-Spanning Tree Protocol. Ukuvela kwale phrothokholi ikakhulukazi kuxazulula inkinga yezixhumanisi ezingasasebenzi ezakha izihibe kunethiwekhi. Njengesisetshenziswa esibulalayo sokuxhumana kwenethiwekhi,OLTnakanjani ihlangabezana nezinkinga ze-loop yenethiwekhi kusakhiwo se-topology yenethiwekhi. Ngesikhathi esifanayo, ngenxa yokuba khona ngokomzimba kwezinkinga ze-loop yenethiwekhi, kunzima ukukhomba ukuthi iyiphi ingxenye yemishini yenethiwekhi ebangela inkinga ye-loop.
Iphrothokholi ye-STP iwukwenza ukwakheka kwesihlahla okunengqondo ngokuvimbela ngokunengqondo ezinye izimbobo kunethiwekhi enamaluphu abonakalayo ngokusebenzisa i-algorithm.
Njengoba kuboniswe esithombeni esingenhla, kukhona amaswishi amathathu kumdwebo we-topology yenethiwekhi, futhi kunezinkinga ze-loop ebonakalayo ngokushintsha okuthathu kusakhiwo senethiwekhi. Inqobo nje uma umsebenzi we-STP uvuliweshintsha, ishintshaikhetha ukuthi iyiphi imbobo yesixhumanisi somzimba okufanele ivinjwe ngokusekelwe emithethweni yephrothokholi.
Konke ukuxhumana kwephrothokholi yedivayisi yenethiwekhi kunethiwekhi ngokuyisisekelo kufinyelelwa ngokusebenzisana komlayezo. I-STP isebenzisa i-BPDU (Iyunithi Yedatha Yephrothokholi Yebhuloho) ukuze yazise ukuthi iyiphi imbobo yokuxhumana yeswishi okufanele ivinjwe. Ukusetshenziswa komsebenzi we-STP akukwazi ukuvimba kuphela imbobo yokuxhumana ye-Link 1 ye-shintsha, kodwa futhi usebenzise imbobo yokuxhumana ye-Link 1 njengendawo yokugcina ikhophi. Nokho, lapho i-Link 3 ingakwazi ukuxhumana, imbobo ye-Link 1 iyavulwa ukuze kuqinisekiswe ukuxhumana okuvamile kwenethiwekhi.
Endaweni yenethiwekhi yanamuhla, ngenxa yobulukhuni bendawo yenethiwekhi, i-STP isiphenduke umsebenzi obalulekile kumishini yasehhovisi efana nokushintsha kanyeOLTs. Ukuze kuhlangatshezwane nezidingo zemakethe futhi kuhlangatshezwane nezidingo zenethiwekhi zamakhasimende, i-RSTP ivele njengenguqulo ethuthukisiwe yokusebenza kwe-STP. Uma kuqhathaniswa ne-STP, i-RSTP ingafuduka ngokushesha ngokwemibandela yokusebenza, futhi isivinini nokusebenza kahle kokuhlangana kwenethiwekhi kungcono kune-STP. Ngesikhathi esifanayo, i-RSTP ingahambisana ne-STP, okungukuthi, amaswishi amabili kunethiwekhi, eyodwa egijima i-STP kanti enye isebenzisa i-RSTP. Umsebenzi usengafinyelelwa, kodwa ishintshaukusebenzisa i-RSTP kuzoshintsha ngokuzenzakalelayo kusebenze i-STP.
Okungenhla ukubuka okufushane kwephrothokholi yenethiwekhi ye-STP ubuchwepheshe besofthiwe, engasebenza njengereferensi yawo wonke umuntu. Inkampani yethu ineqembu eliqinile le-software ne-hardware lobuchwepheshe, elingahlinzeka ngezinsizakalo zobuchwepheshe kumakhasimende. Imikhiqizo yethu edayiswa kakhulu ihlanganisa izinhlobo ezahlukene zokushintshwa kanyeOLTimikhiqizo yochungechunge. Uma udinga, ungaqhubeka uqonde.