Having a look at the netmap tutorial on route reflector page it shows a frame relay switch sitting in the middle of a bunch of routers and the netmap has 107 at the end of the connections, 107 being the linklayer header type for frame relay. This last sample network, based on the network shown in figure 1120, uses both multipoint and pointtopoint subinterfaces. Comprehensive guide to configuring and troubleshooting. Ospf host routes with network type pointtomultipoint. A fr switch acts as dce and the customer equipment works as dte. Configuring payload compression on a multipoint interface or subinterface 55. These commands are needed here so that you can configure frame relay to handle broadcast traffic with the broadcast keyword. In this blog we are going to break down framerelay inversearp. An fr network may be considered as a fr cloud that consists of fr switches, and customer nodes. Frame relay user guide for routing devices techlibrary. While we still have more lessons left to fully cover the major aspects of frame relay and its configuration, i wanted to include a couple of short, basic lessons covering frame relay configuration to break up the block. Configuring a pointtomultipoint frame relay wan free ccna. You can go through the basic configuration and verification of the point to point protocol ppp. When configuring frame relay i always pick one router and use it as the starting point.
You can configure multiple point to point subinterfaces using a single physical frame frame circuit. Use the show framerelay pvc command to verify that frame relay is configured correctly. Configuring pointtopoint frame relay subinterfaces. You are not able to ping your own ip address on a multipoint frame relay interface. The basic configuration of frame relay is simple, but the network administrator plans the frame relay configuration based on different factors. Configure framerelay mulit point and configure dynamic broadcast protocol rip. Ospf pointtopoint, pointtomultipoint bc nbc are compatible with each other since none of them requires a drbdrjust need to change the timers to accomplish this. Frame relay, cisco ios release 15s 16 configuring frame relay understanding frame relay subinterfaces. Both pointtopoint and multipoint subinterface creation were explained. Frame relay topology frame relay is a nonbroadcast multiaccess nbma connection scheme. The main difference between pointtopoint and multipoint connection is that in a pointtopoint connection the link is only between two devices i. Lab configuring frame relay and subinterfaces topology. Read the wikipedia article to learn more about frame relay. For routing traffic between devices will use eigrp routing protocol, we have used 2600 series routers and one frame relay switch.
Frame relay is one of the most popular wan service deployed over the past decade. In this lesson well take a look at framerelay pointtopoint which is far easier to configure. Ping must be successfully after above configuration as show below. Configure the ip addresses as specified in the topology picture on pointtomultipoint subinterfaces. Misconfiguration is more likely to cause network to run abnormally. Your router cant read your mind and find out on which subinterfaces which dlcis should be so you have to configure it yourself. 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 figure below shows the basic frame relay configuration on a cisco router, connected directly to a dedicated frame relay switch, or dce. To explain frame relay configuration, i will use packet tracer network simulator. In the same way, it helps to learn how to configure and verify a ppp along with the pap and chap authentication, and ppoe. 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. If you only had one customer requiring a multipoint network, then there is no reason to use a multipoint subinterface, just configure your framerelay statements under the physical interface. Configure frame relay for the cisco ccna part 1 duration. The first two lines use serial 0 as the starting point.
According to the engineering practice of framerelay and ospf, this paper puts forward the key problems in framerelay multipoint interface network running ospf, and makes an intensive study of the main points of solving problems. When a frame relay multipoint subinterface is configured, ospf treats this subinterface as an nbma network type. Eigrp over framerelay multipoint physical interface gns3. Table 1112 summarizes the addresses and subinterfaces used. Frame relay configuration frame relay for icnd exam. Routing ospf non broadcast and point to multipoint. Physical, multipoint subinterfaces, and pointtopoint subinterfaces. 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. Configuring transparent bridging for pointtomultipoint interfaces. Chart and diagram slides for powerpoint beautifully designed chart and diagram s for powerpoint with visually stunning graphics and animation effects. Because a cisco router can be set up to function as a frame relay switch, the configuration examples for configuring a frame relay switch to use both local and global significant addressing were demonstrated.
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. Examples 11 through 1117 show the configuration for this network. Both of them describes a method to connect two or more communication devices in a link. Pointtopointwhen a frame relay pointtopoint subinterface is configured, the subinterface emulates a pointtopoint network and ospf treats it as a pointtopoint network type. To simulate vcs in packet tracer following steps are required. Configure all routers to use framerelay encapsulation. This means that although frame relay interfaces support multipoint connections by default, broadcast routing updates are not forwarded to remote sites. You only have to specify encapsulation framerelay on the physical interface. 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. This article will explain frame relay configuration in cisco packet tracer. The main difference between point to point and multipoint connection is that in a point to point connection the link is only between two devices i.
This lab will discuss and demonstrate the configuration and verification of multipoint frame relay interfaces. Comprehensive guide to configuring and troubleshooting frame. Configuring the encapsulation on a physical interface. Mikkel is talking about a particular aspect of multipoint frame relay interfaces. Whats the difference between the two ospf network types. Frame relay is a layer 2 wan protocol that cand be configured on physical serial links. You can also choose to use multipoint subinterfaces for a frame relay configuration. You can also try this on live routers and other network simulators, but the frame relay switch configuration varies. In addition to physical interfaces, you can also configure two types of logical interfaces for frame relay point to point and multipoint.
Here is the configuration for the hub and spoke routers. Configuring pointtomultipoint ospf over frame relay. Ospf point to multipoint over frame relay get networking. Basic concepts of frame relay explained in easy language.
Having said that lets have some fun with framerelay. In this lab we will try to run a frame relay topology same as the one posted in tshoot demo ticket. This tutorial explains how to configure frame relay step by step. 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. You will also configure frame relay pointtopoint subinterfaces. Table 118 ip addresses with pointtopoint and multipoint subinterfaces. A network where all sites are connected with each others via direct link. We will use figure 2 and table 2 in this section for reference. These are provided typically by an isp, however if you are studying for your ccna. In this lab youll learn how to configure multiple frame relay pointtopoint subinterfaces terminated by a single multipoint interface at a central office.
How to configure frame relay in cisco packet tracer. Create a topology as illustrate in following figure or download this precreated topology. Difference between pointtopoint and multipoint connection. Each line describes how to get to other networks using dlcis. The logical and physical topologies of this lab are shown below. How to configure framerelay pointtomultipoint this time well take a look at the configuration of framerelay pointtomultipoint. Physical interface vs multipoint subinterface in cisco frame relay. Telechargez comme pdf, txt ou lisez en ligne sur scribd.
If you configure a subinterface for framerelay you have to specify if you want to use pointtopoint or pointtomultipoint. All router interface had been configured with ip addresses and routing protocol ripv2. A frame relay fr network is shown in the figure below. Ping your own ip address on a multipoint frame relay. This is because frame relay multipoint subinterfaces are nonbroadcast, unlike ethernet and pointtopoint interfaces highlevel data link control hdlc, and frame relay pointtopoint subinterfaces. The research of framerelay multipoint interface network. How to configure frame relay on cisco router technig. Pdf frame relay is a protocol used for connecting devices on a wide area network. In this lab youll learn how to configure multiple frame relay pointtopoint sub interfaces terminated by a single multipoint interface at a central office. Understanding frame relay interface encapsulation, configuring the frame relay encapsulation on a physical interface, configuring the frame relay encapsulation on a logical interface, example.
When it comes to the hub and spoke topology, the hub is most commonly deployed with a pointtomultipoint interface. In case of any problem regarding to fram relay configuration on cisco devices, ask your question through. Understanding framerelay inversearp astorino networks. In this lab we will setup a frame relay point to multipoint topology on cisco routers by using gns3.
You do not have the required permissions to view the files attached to this post. In previous releases, this required manual assignment in the ospf configuration using the. 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. How to configure, verify ppp and basic concepts of frame relay. We will introduce you to some of the specifics of frame relay configuration for these different interface types. Configuring a pointtomultipoint frame relay wan free. 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 is a layer two protocol that connects networks over long distances. In previous lessons i gave an introduction about framerelay and explained how to configure framerelay pointtomultipoint.
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. Onewaytomakethisnetworkworkfullyistocreateafullymeshednetwork networkb,butdoingsorequiresalargenumberofpvcs,whichmaynotbeeconomicallyfeasible. A virtual circuit is established between the dte and corresponding dce. Pdf establishing frame relay connections using packet tracer. Well start out with an introduction to the technology, and then dig into how it is used on each of our possible framerelay interfaces. This time well take a look at the configuration of framerelay pointtomultipoint. Ensure you can ping both routers from router cinderella.
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