Refer to the passage below and then answer the question afterwards in the same language as the passage: Passage: OSPF supports complex networks with multiple routers, including backup routers, to balance traffic load on multiple links to other subnets. Routers dzakapoteredza dziri mu broadcast domain imwe chete kana kumagumo ose e point-to-point link dzinotaurirana pamwe chete kuburikidza neOSPF protocol. Routers dzinogadzira adjacencies kana dzave dzakaonekwa. Kuonekwa uku kunotanga apo router inozvizivisa pachayo mu Hello protocol packet. Pakugamuchirwa, izvi zvinogadzira mamiriro maviri uye hukama hwakakosha. Ma routers muEthernet kana Relay Frame network anosarudza Designated Router (DR) uye Backup Designated Router (DRB) iyo inoshanda senzvimbo yekuderedza traffic pakati pe routers. OSPF inoshandisa zvese zviri zviviri unicast uye multicast modes kutumira "Hello" kutumira mapakeji uye mamiriro ekuvandudza Mubvunzo: Ndeipi protocol inoshandiswa nema routers munzvimbo dze link?
Gwaro reOSPF.