In this lesson well take a look at frame relay point to point which is far easier to configure. In previous lessons i gave an introduction about frame relay and explained how to configure framerelay point tomultipoint. Frame relay connectivity is provided via point to multipoint networks. Frame relay is a layer two protocol that connects networks over long distances. Pdf frame relay is a protocol used for connecting devices on a wide area network. Verify the framerelay map statements using the show framerelay map command.
Tutorial for frame relay operation in cisco packet tracer 7. How to configure frame relay on cisco router technig. The frame format used on the pointto multpoint links. Configuring frame pointtopoint subinterfaces you can configure multiple point to point subinterfaces using a single physical frame frame circuit. Pointtomultipoint solutions streamline the development, deployment, enhancement and extension of advanced ipbased wireless broadband networks. So, suppose we teach the bridges relay function to deal with. Originally designed for transport across integrated services digital network isdn infrastructure, it may be used today in the context of many other network interfaces. This lab will discuss and demonstrate the configuration and verification of multipoint frame relay interfaces. The first two lines use serial 0 as the starting point. The table below lists the frame relay frame format components. Each line describes how to get to other networks using dlcis.
In this lab youll learn how to configure multiple frame relay pointtopoint sub interfaces terminated by a single multipoint interface at a central office. In this lab we will discuss about ospf point to multipoint nonbroadcast over frame relay, will briefly compare with previously discussed ospf network types and will. Configure all routers to use framerelay encapsulation. They excel at delivering ubiquitous highspeed connectivity and stateoftheart services, and are currently helping drive successful business. The definitions for frame relay are contained in documents from the international.
Mikkel is talking about a particular aspect of multipoint frame relay interfaces. Configuring a pointtomultipoint frame relay wan free ccna. Chart and diagram slides for powerpoint beautifully designed chart and diagram s for powerpoint with visually stunning graphics and animation effects. This frame is very similar to the hdlc frame except for the missing control field here. As mentioned previously framerelay is nonbroadcast multiaccess media, which means that there must be a mechanism for layer 3 to layer 2 resolution. On partially meshed frame relay networks, the problem of split horizon can be overcome by using frame relay subinterfaces. How to configure framerelay pointtomultipoint this time well take a look at the configuration of framerelay pointtomultipoint. In the below sections, the operation, point to point and multipoint of the frame relay are clearly explained in. Having said that lets have some fun with framerelay. Pdf establishing frame relay connections using packet tracer.
Frame relay networks can be designed using star, fullmesh, and partialmesh topologies. Frame relay is a widearea network with the following features. Basic concepts of frame relay explained in easy language. Pointtomultipoint network architecture in a hubspoke architecture, distributed remote terminals communicate to a central hub location. This article is a completion of two previously discussed labs where we talked about ospf multipoint nonbroadcast over frame relay and ospf point to multipoint over frame relay. In this lab well use the same topology as in the the gay appone, where we talked about how to configure ospf on nonbroadcast network type. Thus, in general, framerelay is less expensive than dedicated wan lines, but customers are not guaranteed bandwidth. The pointtopoint and multipoint are two types of line configuration.
Use nonbroadcast and pointtomultipoint ospf network types. In point to multipoint ospf behaves opposite to the non broadcast network type, namely here ospf does not elect a drbdr but neighbor discovery proccess takes place. Frame relay provides a mechanism to allow a physical interface to be partitioned into multiple virtual interfaces. And he is correct that if you want to be able to ping your own interface, then you must manually configure a frame relay mapping of your own address to one of the dlcis on the interface. All locations plug into the frame relay cloud, which is a conglomeration of dozens or hundreds of framerelay switches and routers. Frame relay topology frame relay is a nonbroadcast multiaccess nbma connection scheme.
In previous lessons i gave an introduction about framerelay and explained how to configure framerelay pointtomultipoint. Frame relay configuration frame relay for icnd exam. October 6, 2011 feature history release modification prior to 12. Since you are working your way to becoming the ultimate networking guru, you are prepared to do a full framerelay config. In this lesson well take a look at framerelay pointtopoint which is far easier to configure. This tutorial explains how to configure frame relay step by step. The multipoint fixed wireless interface must be used to take advantage of the new functionality. Framerelay point to multipoint topology as you have already seen we will configure r1 interface as multipoint but r2 and r3 as pointtopoint.
When a frame relay multipoint subinterface is configured, ospf treats this subinterface as an nbma network type. This feature module describes frame relay support for multipoint fixed wireless. Actually, such subinterfaces do not allow the framerelay map command. Ensure you can ping both routers from router cinderella. This type of configuration can be used between hub and spoke sites where you would want to keep the spokes in their own layer 3 subnets. The point to point frame relay is the easiest one to configure. When it comes to the hub and spoke topology, the hub is most commonly deployed with a pointtomultipoint interface. Example frame relay multipoint subinterface with dynamic addressing 64 example ipx routes over frame relay subinterfaces 64 example unnumbered ip over a pointtopoint subinterface 65 example transparent bridging using subinterfaces 65 example svc configuration 65 contents widearea networking configuration guide. This means that although frame relay interfaces support multipoint connections by default, broadcast routing updates are not forwarded to remote sites. On the networks of the frame relay, the single vc originates at the local end and also terminate at a remote end. Inverse arp will map the remote ip addresses to the correct dlci. Configure the ip addresses as specified in the topology picture on pointtomultipoint subinterfaces. Routing ospf non broadcast and point to multipoint.
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. Consider figure 2, a company lets say abc has purchased framerelay wan. 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. Wilma wants you to change the configuration to use a multipoint subinterface. In the multipoint all 4 interfaces will be in the same subnet, while with point to point connections each point to point would be a separate subnet. If you have no idea what framerelay is or what a pvc, dlci or lmi is you should start with my introduction to framerelay first. When configuring frame relay i always pick one router and use it as the starting point. Frame relay pointtopoint subinterfaces international journal on recent and innovation trends in computing and communication issn. The structure of the frame relay frame shown in the figure. Basic frame relay configuration disable lmi and use a static map 192. Eigrp over framerelay multipoint physical interface gns3.
Configuring pointtopoint frame relay subinterfaces. Gigaman pointtopoint ethernet service over fiberoptic cable, vpn, and multiprotocol label switching mpls, frame relay has become a less desirable solution for accessing the wan. Ospf point to multipoint over frame relay get networking. In case of any problem regarding to fram relay configuration on cisco devices, ask your question through. The subnet address is normally designated to the each connection of the point to point. Both of them describes a method to connect two or more communication devices in a link. This time well take a look at the configuration of framerelay pointtomultipoint. What are two characteristics of frame relay pointtopoint subinterfaces. Frame relay point to multipoint with eigrp lab, a gns3 video tutorial to understand frame relay multipoint configuration using eigrp for routing traffic between devices. 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. This command also enables frsw to function as a switch connected to a router. Frame relay is one of the most popular wan service deployed over the past decade. 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.
Pointtomultipoint bridging ieee 802 lanman standards. The main difference between pointtopoint and multipoint connection is that in a pointtopoint connection the link is only between two devices i. The only piece of information needed is the dlci, which will be used to send all data onto that pointtopoint subinterface. Comtech ef datas bridged pointtomultipoint implementation provides a solution to this problem, and enables layer 2 bridged connectivity in a pointtomultipoint network. 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.
When implementing ospf over a multipoint frame relay i would configure a single. And the second option is by using the multipoint subinterface on s000 of router0 like this. Additionally, the frame relay is the very cost efficient data transmission telecommunication service for the intermittent traffic. Take a good look at the topology before you start configuring. With multipoint interfaces where all devices are in a common subnet we tend to make some assumptions, such as the assumption that every device in the subnet can get directly to every other device in the subnet. Ospf point to multipoint non broadcast over frame relay. The cloud is the frame providers network, and the customer has no control or even. Configuring a pointtomultipoint and pointtopoint pvc and having ip connectivity is your goal. Configuring a pointtomultipoint frame relay wan free. Difference between pointtopoint and multipoint connection. Frame relay frame relay is a highperformance wan protocol that operates at the physical and data link layers of the osi reference model. 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. Remove the previous configuration from r1s serial00 interface and create a pointtomultipoint subinterface and configure it with the correct framerelay maps. Configuring frame relay subinterfaces cisco frame relay.