Route high speed changeover method and router

摘要: PURPOSE:To reduce considerably a time switched to backup route after the occurrence of fault in router network system having redundant between LANs and switch at high speed by only mount an additional function without imposing any modification onto communication terminal equipment. CONSTITUTION:Routers 1, 3 routers 2, 4 being respectively relation 7 8 send periodically monitor packet for mutual with each other interval shorter than routing protocol packets addition generating table. Thus, switching on is reduced more case using standard such as RIP means packet. Furthermore, since this method does not give effect protocol, obtained needing revision existing equipment all.