Explain the use of DLCI numbers in Frame Relay.
What will be an ideal response?
Frame Relay connections identify virtual circuits by Data Link Connection Identifier (DLCI) numbers. The DLCI (pronounced dell-see) numbers map virtual circuits to layer 3 protocol addresses. For example, a DLCI number associates an IP address with a specific virtual circuit. DLCI numbers do not specify a physical port and are not unique identifiers on the network; instead, they have only local significance, which means they are important only to the local router and Frame Relay switch. DLCI numbers are usually assigned by the Frame Relay provider and are most likely not the same on either side of the Frame Relay switch. This is what is meant by "local significance." The provider, which is usually the telco, controls how the DLCI switching occurs. Because DLCIs have only local significance, any available number can be selected for each end of a PVC at the time of subscription.
You might also like to view...
The keywords used in programming languages that use decisions to redirect the flow of a program are called ________
A) operators B) flowcharts C) pseudocode D) control structures
The C programming language is considered what type of language?
A. Object-oriented (OO) B. Scripting C. Event-driven D. Procedural
What does FTP stands for?
A) Field Transfer Procedure B) File Transfer Procedure C) File Transfer Protocol D) Field Transfer Protocol
public? class A : B, C Which of the following statements is TRUE regarding the above declaration?
A. ?A is the base class. B. ?B is the derived class. C. ?C is an interface. D. ?All of the above are correct.