Subject: Advanced Networking Technologies

Difficulty: Medium

Marks: 5 marks

Frame Relay:

• It is a high performance WAN protocol that operates at the physical and data link layers of OSI reference model.
• FR is based on packet switching technology.

Frame relay devices are

1. Data terminal equipment (DTE)
2. Data circuit terminating equipment (DCE)

Data terminal equipment (DTE):

• It is terminating equipment for a specific network.
• It is typically are located on the premises of a customer.
• Examples: Terminals,Personal computer,Router and Bridges.

Data circuit terminating equipment (DCE):

• These are carrier owned inter-networking devices.
• It provides clocking and switching services in a network.

Frame relay has following benefits over a private line network design:

1. Cost saving
2. More efficient circuit use
3. Higher network availability
4. Higher performance
5. Virtual circuit vs physical circuits