![]() Next command assigns IP address in interface. Router(config-if)#encapsulation frame-relay :- This command will change default encapsulation method to Frame Relay. We cannot use Frame Relay with default encapsulation. In Cisco routers default encapsulation is set to HDLC. Interface serial 0/0/0 :- This command is used to enter in interface mode. First three commands in above configuration are used for this purpose.Įnable :- This command is used to enter in privileged exec mode.Ĭonfigure terminal :- This command is used to enter in global configuration mode. To configure Frame Relay on this interface we need to enter in interface mode. As figure shows interface serial 0/0/0 is assigned for frame relay on both routers. ![]() So our first logical objective is to identify the correct interface. As we know, routers allow us to run different Let’s understand above configuration step by step. Router(config-if)#frame-relay interface-dlci 101 Router(config-if)#encapsulation frame-relay We need following essential configuration on both routers to bring this network up. That’s all setting we need in packet tracer to simulate Frame Relay. In our example these values will be following Just like real life environment, we ( Frame Relay ) need to share LMI option and DLCI number with DTE (customer). Previous part of this article explains these terms in more detail. End user uses this value to identify the other end of VC. For this information Frame Relay assigns two DLCI values in each VC, one for each end. All the end user need to know is which VC is connected with which site. Neither end user need to know this technology nor provider company share this information with users. Service provider company uses its internal infrastructure to build VCs. So in right side we will select Serial 1 and R2toR1.įrame Relay connects two sites via VC (Virtual Circuit). R2 is connected on Serial 1 and we have created a connection naming R2toR1. So in left side we will select Serial 0 and R1toR2. R1 is connected on Serial 0 and we have created a connection naming R1toR2. For other end of VC we need to select appropriate connection and interface from right side dropdown boxes. In Right window select interface and connection from dropdown box. Select Frame Relay option from left pane. LMI option and DLCI number are provided by Frame Relay company.įollow the same process and configure LMI and DLCI number for serial 1 interface. DLCI number must be unique for a Frame Relay interface.Ĭonnection Name :- Connection name is used to map VCs between interfaces. Whatever number (usually 17 to 1000) we use here, we must have to use the same number at DTE. Whatever option we choose here, we have to use the same option at DTE ( serial 0/0/0 interface of router).ĭLCI :- DTE device will identify this VC from DLCI number. LMI :- Frame Relay supports three LMI options ANSI, Cisco and Q933a. From left pane select appropriate interface. To simulate VCs in packet tracer following steps are required :-Ĭlick Cloud-PT and click Config. Frame Relay Configuration in Packet Tracer step by step In real life Frame Relay provider company builds VCs but in LAB environment we have to bear this responsibility. At this time there is no configuration in any device. This example network includes two routers and one frame relay cloud.īoth routers connected with each other via Frame Relay cloud. This part explains basic concepts of Frame Relay such as LMI Types, DLCI, Access Rate, CIR rate, PVC, SVC and network type in easy language. This tutorial is the fourth part of the article. This part explains PPP (Point to Point) protocol and encapsulation method in detail with examples including step by step configuration guide.īasic Concepts of Frame Relay Explained in Easy Language This tutorial is the third part of the article. PPP Protocol and Encapsulation method Explained This part explains HDLC (High-Level Data Link Control) protocol and encapsulation method in detail with examples including step by step configuration guide. This tutorial is the second part of the article. HDLC Protocol and Encapsulation method Explained This part explains basic wan concepts including terminology, encapsulation methods, switching concepts and encapsulation protocols in detail with example. This tutorial is the first part of article. WAN Tutorial – Basic WAN Switching Concept Explained You can read other parts of this article here. This tutorial is the last part of our article " WAN Terminology Explained with Encapsulation Protocols and Methods".
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