1. Imatengera dongosolo lonse lotsekereza madzi owuma popanda kudzaza mafuta. Zimakhala zoyera komanso zachangu panthawi yomanga ndipo sizikhudza malo ozungulira.
2. Kuchuluka kwa fiber optical, kuchuluka kwa ma cores ndi malo ochepa
3. Kanema wam'mbali mwa mbali ziwiri wokutidwa ndi zida zachitsulo zamalata ndi m'chimake wawiri wosanjikiza bwino kukana kukakamizidwa kwa chingwe cha kuwala.
Chingwe chowala chikachotsedwa, ndikosavuta kutsegula mlengalenga. Ili ndi chiyembekezo chogwiritsa ntchito pa intaneti (makamaka FTTX) ndi inter office relay.