思科网络技术培训之14：帧中继.pptVIP

Objectives Determine how Frame Relay operates Configure Frame Relay Configure Frame Relay subinterfaces Verify Frame Relay operation Frame Relay Overview Virtual circuits make connections Connection-oriented service Frame Relay Stack Frame Relay Terminology Frame Relay Address Mapping Frame Relay Signaling Cisco supports three LMI standards: Cisco ANSI T1.617 Annex D ITU-T Q.933 Annex A Frame Relay Inverse ARP and LMI Operation Frame Relay Inverse ARP and LMI Operation Frame Relay Inverse ARP and LMI Operation Frame Relay Inverse ARP and LMI Operation Frame Relay Inverse ARP and LMI Operation (cont.) Frame Relay Inverse ARP and LMI Operation (cont.) Frame Relay Inverse ARP and LMI Operation (cont.) Configuring Basic Frame Relay Configuring Basic Frame Relay (cont.) Configuring a Static Frame Relay Map Verifying Frame Relay Operation Verifying Frame Relay Operation (cont.) Displays LMI information Verifying Frame Relay Operation (cont.) Displays PVC traffic statistics Verifying Frame Relay Operation (cont.) Displays the route maps, either static or dynamic Verifying Frame Relay Operation (cont.) Verifying Frame Relay Operation (cont.) Selecting a Frame Relay Topology Reachability Issues with Routing Updates Resolving Reachability Issues Solution: Split horizon can cause problems in NBMA environments Subinterfaces can resolve split horizon issues A single physical interface simulates multiple logical interfaces Configuring Subinterfaces Point-to-Point Subinterfaces act as leased line Each point-to-point subinterface requires its own subnet Applicable to hub and spoke topologies Multipoint Subinterfaces act as NBMA network so they do not resolve the split horizon issue Can save address space because uses single subnet Applicable to partial-mesh and full-mesh topology Configuring Point-to-Point Subinterfaces Summary Review Questions Purpose: This figure states the chapter objectives. Emphasize: Read or state each objective so each student has a clear understanding