R1 has pvc with all routers, but the others have only with r1 and this dlci is 1001 on all other routers r2, r3, r4. Both of them describes a method to connect two or more communication devices in a link. Configure frame relay for the cisco ccna part 1 duration. 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. 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. Pots, 10baset, unstructured ds1e1, structured ds1e1, frame relay, atm25, serial atm over t1e1, ds3e3 dan oc3stm1. This tutorial explains how to configure frame relay step by step in cisco routers, how to configure lmi option and dlci number in frame relay, how to create point point and multipoint connection in frame relay, how to create frame relay sub interface, how to simulate frame relay in packet tracer and how to verify frame relay implementation in detail with example including frame relay. Similarly, the framerelay map protocol protocoladdress dlci broadcast command can be used to specifically assign dlcis to the multipoint subinterfaces. The point tomultipoint mode of operation allows us to then configure selected routers with neighbor cost commands, identifying a specific cost for the connection to the specified peer. Verify the frame relay map statements using the show frame relay map command. Frame relay multipoint config answers part 2 wendells. You have a big mistake on the multipoint example, you set on the frame relay switch the dlci to 202 and on the router 3 you did this. On serial0 of frame relay switch add the following dlci and named with router name or anything you want. Now configure the interface serial10,serial 11 and serial 12 with this command to make pvc between ho to bo1,ho to bo2,ho to bo3.
A single point to point subinterface establishes one pvc connection to another physical interface or subinterface on a remote router placing them in their own subnet and each point to point subinterface has a single dlci. How to configure frame relay on cisco router technig. We are going to have both point to point and multipoint subinterfaces. Framerelay point to multipoint topology as you have already seen we will configure r1 interface as multipoint but r2 and r3 as pointtopoint. Using frame relay pointtopoint subinterfaces cisco.
Point to point when a frame relay point to point subinterface is configured, the subinterface emulates a point to point network and ospf treats it as a point to point network type. Comprehensive guide to configuring and troubleshooting frame relay frame relay point to multipoint comprehensive guide to configuring and troubleshooting frame relay configuring frame relay multipoint subinterfaces. Config wan frame relay point tomultipoint dynamic encapsulation. Multipointwhen a frame relay multipoint subinterface is. 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. Try to configure the serial interfaces of the frame relay switch like below screenshot. Frame relay guide point to point and point tomultipoint. However, in this lab, r2 interface serial001 is configured as the dce for. Multi point to multi point service type used to create multipoint layer 2 vpns transparent lan service point to point evc ce uni uni ce ce uni ce uni multipoint evc. Configuring a pointtomultipoint frame relay wan free ccna. Pointtopointwhen a frame relay pointtopoint subinterface is configured, the subinterface emulates a pointtopoint network and ospf treats it as a pointtopoint network type.
Framerelay guide pointtopoint and pointtomultipoint. Frame realy point to point and multipoint with sub. In this lab youll learn how to configure multiple frame relay pointtopoint sub interfaces terminated by a single multipoint interface at a central office. Configuring a pointtomultipoint frame relay connection 21. Much like point to point, ospf expects multicast support frame relay pseudo broadcast while configuring iptodlci mapping. On partially meshed frame relay networks, the problem of split horizon can be overcome by using frame relay subinterfaces. Additionally, the frame relay is the very cost efficient data transmission telecommunication service for the intermittent traffic. Niu tersedia pada bentuk scaleable dan nonscaleable tergantung. In realworld frame relay deployments, a modem or csudsu normally provides the clocking functions dce for each serial link.
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 transparent bridging for pointtopoint subinterfaces 55. Ciscoios findingfeatureinformation,page1 informationaboutframerelay,page1 howtoconfigureframerelay,page25 configurationexamplesforframerelay,page58 additionalreferences,page80. Unlike pointtopoint subinterfaces, the framerelay interfacedlci command can be configured multiple times to associate more than one dlci to a multipoint subinterface. Configure ospf on all 3 routers, make sure you have full connectivity. One of the type im having confusion is point tomultipoint. Les interfaces point to point utilisent frame relay. In this lab we will try to run a frame relay topology same as the one posted in tshoot demo ticket. Configure the correct frame relay map statements on all routers and make sure you can ping every ip address. Configuring a frame relay switch is outside the scope of the ccna, ccnp and even the ccie exam. What is frame relay subinterfaces explained with example how to configure frame relay point multipoint cisco ccna frame relay part v certificationkits com cisco ccna frame relay part v certificationkits com.
The point is that the command context tells ios that this framerelay map command is about that particular subinterface. If you use gns3 you can use the simpletoconfigure frame relay switch emulator. Dlci mappings are the same like in previous article. Frame relay subinterfaces can be configured in either point to point or multipoint mode. How to configure framerelay pointtomultipoint this time well take a look at the configuration of framerelay pointtomultipoint. Example frame relay multipoint subinterface with dynamic addressing 68. Point tomultipoint ospf network type over frame relay is what i like to call the cheater method. Multipointwhen a frame relay multipoint subinterface is configured, ospf treats this subinterface as an nbma network type. This tutorial explains how to configure frame relay step by step. Gigaman point to point ethernet service over fiberoptic cable, vpn, and multiprotocol label switching mpls, frame relay has become a less desirable solution for accessing the wan. So, back to the two big ideas that the router must somehow connect to each subinterface.
Hi everyone, im trying to understand ospf network types. Actually, such subinterfaces do not allow the framerelay map command. Remove the previous configuration from r1s serial00 interface and create a point tomultipoint subinterface and configure it with the correct frame relay maps. Wilma wants you to change the configuration to use a multipoint subinterface. When a frame relay multipoint subinterface is configured, ospf treats this subinterface as an nbma network type. In previous lessons i gave an introduction about frame relay and explained how to configure framerelay point tomultipoint. Frame relay provides a mechanism to allow a physical interface to be partitioned into multiple virtual interfaces.
Mixture of point to point and multipoint frame relay. The logical and physical topologies of this lab are shown below. Inverse arp will map the remote ip addresses to the correct dlci. Configuring frame relay subinterfaces cisco frame relay. 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. Using ospf pointtomultipoint on ethernet netcraftsmen. Pdf establishing frame relay connections using packet tracer. Ospf point tomultipoint rfcbased, not cisco proprietary treats the neighbors just like point to point connection except for timers since p2p uses 1040. From the html or pdf version of the manual, copy a configuration example. Well, you do not need a dr and you do not need neighbor commands.
Configure the ospf network type to point tomultipoint on all serial interfaces. The only piece of information needed is the dlci, which will be used to send all data onto that point to point subinterface. Open the frame relay lab which you have downloaded and configure frame relay the same as screenshot. If im correct, this network type emulates a point to point connection where no drbdr is required and no need to define manual neighbors in order to establish the adjacencies between ospf routers in nbma network like frame relay. In this lab, you will configure frame relay encapsulation on serial links. You will also configure frame relay pointtopoint subinterfaces. In previous lessons i gave an introduction about framerelay and explained how to configure framerelay pointtomultipoint. 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. Tutorial for frame relay operation in cisco packet tracer 7. Ospf point to multipoint over frame relay get networking. In this lab youll learn how to configure multiple frame relay pointtopoint subinterfaces terminated by a single multipoint interface at a central office.
Pointtopoint is the simplest form of framerelay configuration. Framerelay point to multipoint topology as you have already seen we will configure r1 interface as multipoint but r2 and r3 as point to point. The key design concept here is to add neighbor cost commands telling the 1 gbps connected routers which neighbors are connected at 100 mbps. Frame relay is a layer two protocol that connects networks over long distances. Configuring a pointtomultipoint frame relay wan when it comes to the hub and spoke topology, the hub is most commonly deployed with a pointtomultipoint interface. Difference between pointtopoint and multipoint connection. Configure the serial interfaces connecting r1, r2, r4 and r5 to the hubandspoke frame relay topology as an ospf point tomultipoint network type. Mikkel is talking about a particular aspect of multipoint frame relay interfaces. Point tomultipoint digital broadband wireless access networks saat ini pt telkom kesulitan melayani demand pelanggan bisnis akan kebutuhan akses bandwidth. Configuring frame relay feature history release modification forinformationaboutfeaturesupportinciscoios software,useciscofeaturenavigator.
In addition to physical interfaces, you can also configure two types of logical interfaces for frame relay pointtopoint and multipoint. Configuring a pointtomultipoint frame relay wan free. Originally designed for transport across integrated services digital network isdn infrastructure, it may be used today in the context of many other network interfaces. The point to point and multipoint are two types of line configuration.
This lab will discuss and demonstrate the configuration and verification of multipoint frame relay interfaces. In this lesson well take a look at frame relay point to point which is far easier to configure. A multipoint subinterface can have multiple virtual circuits to multiple locations. Multipoint interfaces are logical frame relay subinterfaces but they can terminate more. In the below sections, the operation, point to point and multipoint of the frame relay are clearly explained in.
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