CCNA全版PPT 4-01-FR.pptVIP

Objectives Upon completing this module, you will be able to: Use Cisco IOS commands to configure an operational serial Frame Relay connection and Frame Relay subinterfaces, given a functioning router Use show commands to identify anomalies in an operational serial Frame Relay connection and Frame Relay subinterfaces, given a functioning router Use debug commands to identify events and anomalies in an operational serial Frame Relay connection and Frame Relay subinterfaces, given a functioning router and an operational serial Frame Relay connection Objectives Upon completing this lesson, you will be able to: Describe the features and operation of a Frame Relay network Define important Frame Relay terms including local access rate, virtual circuit, PVC, SVC, DLCI, CIR, InARP, LMI, FECN, and BECN Frame Relay Overview Connections made by virtual circuits Connection-oriented service Frame Relay Stack Frame Relay Terminology Frame Relay Signaling Cisco supports three LMI standards: Cisco ANSI T1.617 Annex D ITU-T Q.933 Annex A Selecting a Frame Relay Topology Reachability Issues with Routing Updates Resolving Reachability Issues Split horizon can cause problems in NBMA environments. Subinterfaces can resolve split horizon issues. Solution: A single physical interface simulates multiple logical interfaces. Frame Relay Address Mapping Frame Relay Inverse ARP and LMI Signaling Stages of Inverse ARP and LMI Operation How Service Providers Map Frame Relay DLCIs: Service Provider View How Service Providers Map Frame Relay DLCIs: Enterprise View Summary Frame Relay is an ITU-T and ANSI standard that defines the process for sending data over a public data network. The core aspects of Frame Relay function at the lower two layers of the OSI reference model. Knowing the terms that are used frequently when discussing Frame Relay is important to understanding the operation and configuration of Frame Relay services. Frame Relay allows you to interconnect your remote sites in a v