What is Frame Relay configuration?

Frame Relay is a Layer 2 WAN protocol that cand be configured on physical serial links. In addition to physical interfaces, you can also configure two types of logical interfaces for Frame Relay – point-to-point and multipoint.

What is Frame Relay PVC?

Frame relay devices create SVCs when data needs to be transferred and then close those connections when they aren’t in use. Permanent virtual connections (PVC) keep the connection between two locations open all the time. PVCs are much more common.

How do I configure my router as a frame relay switch?

Example 4-25 Configurations for Frame Relay Switch

1. Enable Frame Relay switching on the router using the command frame-relay switching in the global configuration mode.
2. Go to the interface configuration mode of the Frame Relay interface where you want to configure Frame Relay switching.

How do you set a Frame Relay point to multipoint?

1. Want to take a look for yourself? Here you will find the final configuration of each device. Hub.
2. hostname Hub ! interface Serial0/0 ip address 192.168.123.1 255.255.255.0 encapsulation frame-relay ! end. Spoke1.
3. hostname Spoke1 ! interface Serial0/0 ip address 192.168.123.2 255.255.255.0 encapsulation frame-relay ! end.

Is Frame Relay still used?

The reason you are learning Frame Relay & PPP is to comprehend basic networking principles. Today, these technologies are no longer widely used (although Cisco sells rather a lot of them to people running obsolete but useful/valuable networks).

What is Frame Relay point?

Creating point-to-point frame relay links is a fundamental skill that network engineers need to be able to perform. Purpose: Frame relay is a WAN technology used to send frames over virtual circuits that are locally identified as Data Link Connection Identifier (DLCI) numbers.

Which network is cheaper than Frame Relay?

Explanation: Frame Relays uses carriers such as SONET (for fiber-optic connections) to physically transmit data frames over a Frame Relay network. SONET is cheaper and provides better network reliability than other carriers.

What is Frame Relay layers?

Frame Relay is a high-performance WAN protocol that operates at the physical and data link layers of the OSI reference model. Frame Relay originally was designed for use across Integrated Services Digital Network (ISDN) interfaces. Frame Relay is a simplified form of Packet Switching, similar in principle to X.

What is frame to point relay?

On Frame Relay networks, a single VC is always provisioned for a point-to-point connection. The same VC originates at a local end and then terminates at the remote end. A subnet address is usually assigned to each point-to-point connection.

What is replacing frame relay?

Thus a VPN can replace a private frame-relay network by using the Internet. The Internet provides connectivity among different offices, and the VPN provides security. Public network solutions are typically half to three-quarters of the cost of private networks, depending on bandwidth requirements.

What is Frame Relay used for?

Frame relay is a protocol that defines how frames are routed through a fast-packet network based on the address field in the frame. Frame relay takes advantage of the reliability of data communications networks to minimize the error checking done by the network nodes.

Why would you use subinterfaces with Frame Relay?

Frame Relay provides a mechanism to allow a physical interface to be partitioned into multiple virtual interfaces. In a similar way, using subinterfaces allows a partially meshed network to be divided into a number of smaller, fully meshed point-to-point networks.

What are the default settings for Frame Relay?

Frame Relay configuration has any options, yet the actual configuration you perform can be very basic depending on how many default settings can be used. Cisco IOS Software uses the following defaults for Frame Relay: LMI Cisco IOS automatically senses the LMI type by default and this feature is referred to as LMI autosense.

What are the commands for Frame Relay encapsulation?

There are three frame-relay specific commands that we configured: We need to enable frame-relay encapsulation. The interface has to be configured as frame-relay DCE. We tell the interface to switch everything that arrives as DLCI 102 to interface S1/2 as DLCI 201.

What is the fifth command in Frame Relay?

Fifth command is used to enable the interface. These five commands are explained in previous example. Okay Let’s understand remaining commands. As we can see in figure R1 is connected with three sites from single serial interface. To connect multiple sites from single interface we have to divide it in sub interfaces.

What is a multipoint interface in Frame Relay?

Multipoint interfaces are logical Frame Relay sub-interfaces but they can terminate more than one PVCs just like physical serial interfaces. R1 has a multipoint Frame Relay sub-interface connected to subnet 192.168.123.0/24 while a point-to-point subinterface terminates the PVC to R4.