ocr: ROUTING UPDATE MESSAGES USING MULTICAST OVER FRAME RELAY NETWORKS Router B Router C Router. A E - Every 30 seconds: RIP IP packet from Router. A Frame relay Every 30 seconds: network Every 60 seconds: Routing information Protocoi (RIP) Nenvorkroplicates- each: RIP IPX and SAP packets IP packet to all routers muiticass packel, andsenosa, from Router A with Multicast Data-Link copyto almembersortne connection Identifer (DLCI) matticast group: Every 60 seconds: RIP IPX packet to all routers with Multicast DLCI Service Advertising Protocol (SAP) Router D packet(s) to all routers with 5 Multicast D ...