Labels:text | screenshot | font | diagram | number OCR: ROUTING UPDATE MESSAGES USING MULTICAST OVER FRAME RELAY NETWORKS Router B Router C Rotiter A Every 30 seconds: Frame relay RIP IP packet from Router A Every 30 seconds: network Every 60 seconds: Routing Information Protocol (RIP) Network replicates each RIP IPX and SAP packets IP packet to all routers with Multicast Data-Link multicast packet, and sends a from Router A Connection Identifer (DLCI) copy to all members of the Every 60 seconds: # multicast groups RIP IPX packet to all routers with Multicast DLCI Service Advertising Protocol (SAP) Router D packet(s) to all routers with Multicast DLCI Router F Router E Figure 2. When the multicast address is used, the number of Routing Information Protocol (RIP) and Service Advertising Protocol (SAP) packets sent in to the frame relay network from Router A is reduced.