The basic configuration of frame relay is simple, but the network administrator plans the frame relay configuration based on different factors. Since you are working your way to becoming the ultimate networking guru, you are prepared to do a full frame. For example, people will say i ordered a framerelay circuit. Frame relay, cisco ios release 15s americas headquarters cisco systems, inc. The same hub and spoke topology is used, only the frame relay switch router configuration is explained here refer the previous article for the hub router and spoke. Table 154 provides details of the framerelay map interface configuration command. Nothing too exciting at the moment, but i do want to touch on it. All contents are copyright 19922007 cisco systems, inc. Be sure to change your cabling to reflect the topology diagram. Congestion control in frame relay basic working mechanisms. Frame relay is a layer 2 protocol and commonly known as a service from carriers. Compare this to the physical path used by a dedicated connection.
Portserver ii configuration and administration guide. Frame relay is a type of wan connection use to connect one site to many remote sites through a single physical circuit, this operation makes it easy to construct reliable read more. Keywords wide area network, frame relay cloud, router. Readers will be able to configure a basic frame relay network involving cisco equipment and to perform basic monitoring and troubleshooting using relevant cisco ios show and debug commands. Frame relay is a standardized wide area network technology that specifies the physical and data link layers of digital telecommunications channels using a packet switching methodology. Configuring pointtopoint frame relay links free ccna. Configure frame relay encapsulation on all serial interfaces. The frad frame relay access device attachment to a frame relay network is made via a frad on the customers premises, which may be a separate device or software in the router. After completing this chapter, readers will be able to perform the basic frame relay configuration commands with the cisco ios software. If your verification procedure indicates that your frame relay configuration is not working properly, you need to troubleshoot the configuration.
Before we get started with configuration,lets talk a little bit about what you see in front of you. Once one becomes a master of frame relay design and configuration, it is much easier to obtain a strong understanding of x. The local loop system was originally designed for voice. Troubleshoot problems with framerelay circuits on your. Today, it is used over a variety of other network interfaces as well. Chart and diagram slides for powerpoint beautifully designed chart and diagram s for powerpoint with visually stunning graphics and animation effects. Comprehensive guide to configuring and troubleshooting. Normally you dont really have to think about the framerelay switch since this is something that the service provider will configure. In figure 33, spans frame relay network uses permanent virtual circuits pvc. This is primarily due to the fact that frame relay services typically are carried by more reliable access and backbone facilities. Frame relay configuration examples and technotes cisco. Pdf frame relay is a protocol used for connecting devices on a wide area network. You can verify the configuration using the show frame relay pvc command. Cisco framerelay switch configuration framerelay requires a framerelay switch that switches one dlci to another, creating a virtual circuit.
Even though several advanced technologies such as vpn, atm are available today, frame relay still rocks and will be in near future due to its features, benefits and lower cost in comparison with other point to point wan services. In 1990, four vendors stratacom, digital equipment corporation, cisco systems and. Configuring a pointtomultipoint frame relay wan free. Configure frame relay for the cisco ccna part 1 danscourses. I dont know if it is necessary to add the routes to your framerelay configuration, but you should check like this.
This chapter focuses on frame relays specifications and applications in the context of wan services. This tutorial explains how to configure frame relay step by step. We will utilize the physical interface for framerelay configuration and as previously mentioned the physical interface is a multipoint interface which can terminate more than one vc. Verify the framerelay map statements using the show framerelay map command. We will use figure 2 and table 2 in this section for reference. Frame relay can be configured to use any synchronous interface on the router, although an x. Frame relay is a widearea network with the following features. This frame is very similar to the hdlc frame except for the missing control field here. Development and testing of a twouav communication relay. Frame relay is an example of a packetswitched technology. The frame relay labs, unlike any of the other labs in exploration 4, have two dce links on the same router.
So with iou i want a frame relay connecting to four other routers in a hub and spoke topology. As part of the big lab i am doing i want to do some work with frame relay. Use the show framerelay pvc command to verify that frame relay is configured correctly. In the same way, it helps to learn how to configure and verify a ppp along with the pap and chap authentication, and ppoe. Backtoback frame relay hybrid switching 17nov2007 comprehensive guide to configuring and troubleshooting frame relay 02nov2005 configuration notes for the implementation of eigrp over frame relay and low speed links 10aug2005.
The service, once widely available and implemented, is in the process of being discontinued by major internet service. The system uses one uav as communication relay point and enables the other uav to operate in areas where direct communication with ground control cannot be established. As the administrator, you are responsible for configuring frame relay among regional offices. Try to configure the router 1, 2 and 3 with static routing or rip routing in order to communicate with each others if your lab wont work correctly, download the configured frame relay lab which work perfectly and troubleshoot frame relay. After configuring your network, its considered a good idea to verify that your configuration is working.
Frame relay is one of the most popular wan service deployed over the past decade. They are locally significant and they identify themselvesto the frame relay cloud so it knows where they. First, to reduce the congestion control, frame relay only uses a single bit in its header. You can go through the basic configuration and verification of the point to point protocol ppp. Frame relay is a popular high performance wan protocol that operates at the physical and data link layers of the osi reference model. In many cases, frame relay is more efficient than x. Ce protocole est utilise par les fournisseurs dacces pour transmettre des signauxvocaux et numeriques entre reseaux locaux par lintermediaire dun reseau etendu. Frame relay configuration commands huawei technical support. While the frame relay standard specifies methods for setting up and. Thus, if the framerelay switch is configured correctly, the framerelay interfacedlci command could theoretically be removed, and the framerelay connection will still work.
The structure of the frame relay frame shown in the figure. Rapid reestablishment of permanent virtual circuits pvcs 15 1 15 6 between frame relay switches 12 1 12 4 in a frame relay 10 is accomplished by periodically polling the switches by a configuration controller 18 via an outofband connection to obtain pvc information from the switches. Pdf now a days the networking area is getting more and more advanced as it has become. Basic concepts of frame relay explained in easy language. Cisco frame relay configurations configuring frame relay. This command is executed in serial interface configuration mode to configure the pointtopoint framerelay interface dlci assigned to the interface. A virtual path is created through the frame relay network so data can rapidly pass through each frame relay switch as its path is previously established. Ppt protection and relay schemes powerpoint presentation. Scenario your isp has provisioned frame relay pvcs for the international travel agency wan. This configuration allows communication to be established across obstacles or over a distance exceeding the range of the onboard radio transceiver, both of which will be. Configure a frame relay dte device, dce switch, or nni support. Frame relay is an industrystandard, switched data link layer protocol that handles multiple virtual circuits using highlevel data link control hdlc encapsulation between connected devices. Us2000700a1 method and apparatus for achieving fast.
Frame relay is a packetswitching telecommunication service designed for costefficient data transmission for intermittent traffic between local area networks lans and between endpoints in wide area networks wans. Troubleshoot problems with framerelay circuits on your cisco router by david davis ccie in networking on july 21, 2005, 12. Originally designed for transport across integrated services digital network isdn infrastructure, it may be used today in the context of many other network interfaces. How to configure a cisco router as a frame relay switch. Our new crystalgraphics chart and diagram slides for powerpoint is a collection of over impressively designed datadriven chart and editable diagram s guaranteed to impress any audience. Configuring frame relay using a switch simulation packet. The following figure illustrates a frame relay frame ansi t1. Complements the cisco wan optimization system by adding the capability to the branch routers. The previous article on configuring frame relay on cisco packet tracer explains it on a simulator, in this article ill show how a cisco router can be used as a frame relay switch. It relays the packets at a data link layer of the osi open system interconnection model. Remove the previous configuration from r1s serial00 interface and create a pointtomultipoint subinterface and configure it with the correct framerelay maps. Now, as you can see, all these dlcis that are surroundingthe routers, remember those are data link connection identifiers. In case of any problem regarding to fram relay configuration on cisco devices, ask your question through. Note that by default split horizon rule is in effect on interfaces and eigrp traffic between r2 lan and r3 lan would not be advertisted if we will not disable this rule on r1 s00.
There are circumstances when dlcis should be manually assigned. Furthermore, it uses notification system for congestion not exclusively for the per virtual circuit. Twi486018b transmission method for wireless relay system. This can be accomplished by using the ping and other troubleshooting methods. C o n t e n t s widearea networking overview 1 finding feature information 1 frame relay 1 frame relay atm internetworking 4 switched multimegabit data service 4 link access procedure balanced and x.
The basic configuration of frame relay is simple, but the network administrator plans the. How to configure, verify ppp and basic concepts of frame relay. Should a fault occur, the fault is isolated and mitigated. As a ccna candidate you are familiar with the concept of framerelay, although you do not need to configure the framerelay switch. Cisco frame relay guide frame relay example configuration troubleshooting connecitivy problems frame relay example configuration service udpsmallservers service tcpsmallservers. Pdf establishing frame relay connections using packet tracer. Cable a network that is similar to the one in the topology diagram.
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