Basic concepts of frame relay explained in easy language. Frame relay frame relay is a packet switching technology that fragmented into transmission units called frames and sent in highspeed bursts through a digital network. In this lab youll familiarize yourself with the following new command. 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. 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. In fact, you can think of frame relay as a way of utilizing existing t1 and t3 lines owned by a service provider.
Configuring a framerelay switch is outside the scope of the ccna, ccnp and even the ccie exam. Frame relay configuration with examples icnd2 200105. 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. Use the show framerelay pvc command to verify that frame relay is configured correctly. How to configure frame relay on cisco router technig. Since you are working your way to becoming the ultimate networking guru, you are prepared to do a full frame. The frame relay protocol allows network designers to reduce costs by using shared facilities that are managed by a frame relay service provider. Therefore, a frame relay subinterface can be configured for each of the pvcs coming into a read more. Download the files the instructor uses to teach the course. The frame relay intftype dce command declare the interface to be a dce device for frame relay switching instead of dte. In figure 33, spans frame relay network uses permanent virtual circuits pvc. Ce protocole est utilise par les fournisseurs dacces pour transmettre des signauxvocaux et numeriques entre reseaux locaux par lintermediaire dun reseau etendu. The definitions for frame relay are contained in documents from the international. Frame relay is a layer two protocol that connects networks over long distances.
This is the way the frame relay code works in cisco ios software. Usually, dlcis 0 to 15 and 1008 to 1023 are reserved for special purposes. Configuring a pointtomultipoint frame relay wan free ccna. For example, if file gs3bfx is to be booted from a host with ip. Dec 04, 2011 this article will explain frame relay configuration in cisco packet tracer. Frame relay says, hey, i want to do something with frame relay, it demands the encapsulation frame relay command to be on. Frame relay configuration examples and technotes cisco. Configuration on the detroit and chicago routers would be as follows. Dec 18, 2011 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. So we do frame relay map ip, frame relay map ip, lets talk about that for structure.
Local management interface lmi message is used to check the status between frame relay dte and dce. Dlci values typically are assigned by the frame relay service provider for example, the telephone company. As the administrator, you are responsible for configuring frame relay among regional offices. Frame relay configuration, how to configure frame relay. In general, the routers are considered dte, and the frame relay switches are dce. The encapsulation frame relay command enables the frame relay process on the selected interface. We can verify the configuration of the frsw with show framerelay route command. Ccnp framerelay configuration lab hub and spoke gns3. Each frame relay subinterface is mapped with the dlci number of the corresponding circuit configured in the packet tracer wan emulation cloud.
They are locally significant and they identify themselvesto the frame relay cloud so it knows where they. Frame relay ppp vlans trunking vtp nat pat acl ospf static routing duration. Frame relay pointtopoint configuration example pointtopoint is the simplest form of frame relay configuration. Having looked at both frame relay concepts and an example of the communication process, lets take a look at configuring a cisco router to use frame relay. Jun 07, 2019 the configuration is completed successfully. Frame relay commands in the cisco ios widearea networking command. Most telephone companies now provide frame relay service for customers who want connections at. The supported protocols with the corresponding keywords to enable them are as follows ip ip. In case of any problem regarding to fram relay configuration on cisco devices, ask your question through. Framerelay pointtopoint configuration example pointtopoint is the simplest form of framerelay configuration. This tutorial explains how to configure frame relay step by step.
As a ccna candidate you are familiar with the concept of framerelay, although you do not need to configure the framerelay switch. The purpose of dce equipment is to provide clocking and switching services in a network. 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. If your verification procedure indicates that your frame relay configuration is not working properly, you need to troubleshoot the configuration. How to configure a cisco router as a frame relay switch. 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. Remove the previous configuration from r1s serial00 interface and create a pointtomultipoint subinterface and configure it with the correct framerelay maps. Although frame relay is popular due to its relatively inexpensive nature, it is being replaced in many areas by. Read the wikipedia article to learn more about frame relay.
Configuring pointtopoint frame relay links free ccna. Cisco ccna routing and switching connecting networks 4. Remember that pvcs are only oneway circuits, and thus we need to create two pvcs in order for full communication to occur. A frame relay map will allow you to map an ip address to a dlci number, this makes the router send traffic that is destined towards that ip address to take the specified dlci number in the frame relay map. Configuration guidescompilations of documents that provide conceptual and. A virtual circuit in frame relay is identified by a number called a data link connection identifier dlci. Learn how to configure, verify and troubleshoot a physical interface pointtopoint frame relay link on a cisco router. C h a p t e r 15 frame relay frame relay is a layer 2 data link widearea networking wan protocol that operates at both layer 1 physical and layer 2 data link of the osi networking model. The first step should always be to configure the physical interface to use frame relay encapsulation using the command encapsulation framerelay in interface configuration mode. A subinterface is simply a logical interface that is directly linked with a physical interface. Data is sent in hdlc packets, referred to as frames.
Next, lets finish establishing basic frame relay connectivity by configuring our frame relay switch. How to configure frame relay in cisco packet tracer. Also please notice that there is no ip address configured on the frame relay switch. After configuring your network, its considered a good idea to verify that your configuration is working. We will utilize the physical interface for frame relay configuration and as previously mentioned the physical interface is a multipoint interface which can terminate more than one vc. A packetswitching protocol for connecting devices on a wide area network wan. This guide walks through how to configure frame relay on cisco routers. Cisco framerelay switch configuration framerelay requires a framerelay switch that switches one dlci to another, creating a virtual circuit. Ccna routing and switching practice and study guide. You can also create a mapping between a dlci and nexthop ip address manually using framerelay map ip command. This can be accomplished by using the ping and other troubleshooting methods. Before we get started with configuration,lets talk a little bit about what you see in front of you. 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. Frame relay point to multipoint topology as you have already seen we will configure r1 interface as multipoint but r2 and r3 as pointtopoint.
Junos os frame relay user guide for routing devices. See the framerelay map description in the communication server. We will use figure 2 and table 2 in this section for reference. This article will explain frame relay configuration in cisco packet tracer. Frame relay configuration isr router configuration frame relay hub router configuration r0 the hub router is configured with two subinterfaces to create a virtual circuit with each spoke.
If you use gns3 you can use the simpletoconfigure framerelay switch emulator. Pdf establishing frame relay connections using packet tracer. Verify the framerelay map statements using the show framerelay map command. Configure an ip address on the interfaces or subinterface using the good old ip address command. Frame relay is a scalable wide area network solution which makes use of packetmode transmission. The basic configuration of frame relay is simple, but the network administrator plans the frame relay configuration based on different.
This lab will expose you to the new concept of frame relay maps. Notice that the pvc between chicago and toronto is a pointtopoint interface. These are provided typically by an isp, however if you are studying for your ccna exam a foundation knowledge of how these work is required. Our network in this example is configured as illustrated in the figure below.
Since you are working your way to becoming the ultimate networking guru, you are prepared to do a full framerelay config. Frame relay from cisco free download as powerpoint presentation. Frame relay configuration we will use figure 2 and table 2 in this section for reference. Normally you dont really have to think about the framerelay switch since this is something that the service provider will configure. Compare this to the physical path used by a dedicated connection.
This is a completely different solution than the first frame relay configuration example i showed you in which all devices were in the same ip subnet. How to configure frame relay in cisco packet tracer jesins. Cisco networking academy courses in the ccna routing and switching curricula. Frame relay is a synchronous hdlc protocol based network. Framerelay point to multipoint topology as you have already seen we will configure r1 interface as multipoint but r2 and r3 as pointtopoint. 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.
A pvc is the logical path along an originating frame relay link, through the network, and along a terminating frame relay link to its ultimate destination. Frame relay and asynchronous transfer mode cybrary. The diagram below of an hdlc frame may be familiar, since without adding specific definitions of how the address, control and crc is used, the diagram is applicable to ibms sdlc, to x. Establishes an exclusive connection during the transmission period called virtual connection. If youre using both books, in chapter 4, fundamentals of wans, of ccna. Frame relay and asynchronous transfer mode this lesson covers frame relay and asynchronous transfer modes. Catalyst, ccda, ccdp, ccie, ccip, ccna, ccnp, ccsp, cisco, the cisco. Frame relay allows for a single serial interface on the router to connect multiple remote sites with the help of virtual circuits.
The configuration for the open shortest path first ospf protocol can be greatly simplified by adding the optional broadcast keyword when doing this task. Now, as you can see, all these dlcis that are surroundingthe routers, remember those are data link connection identifiers. Configuring frame relay linkedin learning, formerly. Usingtheexamplesinthismanual ifyouwanttousetheexamplesinthismanual,youcanusetheloadmergeortheloadmergerelative command. Frame relay from cisco internet protocols computer. Scenario your isp has provisioned frame relay pvcs for the international travel agency wan. In frame relay network connection, a physical interface can be divided into multiple virtual interfaces. Although frame relay internetworking services were initially designed to operate over integrated. Jul 15, 2015 the frame relay switching global command is used to enable frame relay switching on router. Frame relay is one of the most popular wan service deployed over the past decade. Configuring pointtopoint frame relay links free ccna workbook. Frame relay terms and concepts 379 figure 152 frame relay terminology, part i frame relay components frame relay wan service comprises four primary functional components.
Novell ipxipxthis command is not required if you are using inverse arp. Scribd is the worlds largest social reading and publishing site. The frame relay is the packet switched network as well as it may compare with the x. This command is executed in serial interface configuration mode to configure the pointtopoint framerelay interface dlci assigned to the interface. Frame relay configuration having looked at both frame relay concepts and an example of the communication process, lets take a look at configuring a cisco router to use frame relay.
If a framerelay dlci attains a state other than active meaning inactive or deleted, you can check the framerelay configuration to make sure its configuration matches the configuration of the router acting as the framerelay dte device. The basic frame protocol, which is used in the frame relay is hdlc and the typical speed is higher than the x. You can also try this on live routers and other network simulators, but the frame relay switch configuration varies. Configuring a pointtomultipoint frame relay wan free. Use the show frame relay pvc command to verify that frame relay is configured correctly. These are both technologies which allow us to take different lines and utilize them but not as dedicated lease lines, but as virtual circuits. Configuring frame relay feature history release modification forinformationaboutfeaturesupportinciscoios software,useciscofeaturenavigator.
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