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Detailed Information

This module describes the basic concepts behind link fragmentation and interleaving. Topics include: multilink point-to-point protocol (MLP), maximum transmission unit (MTU) size, FRF.12, fragmentation frame sizes and recommendations, serialization delay, and compressed RTP header (cRTP). In addition, there is a brief introduction document that discusses Frame Relay Traffic Shaping (FRTS), and committed information rate (CIR) (including Bc, Be, and DE). You will also do two hands-on Configuration Labs to learn some fundamental LFI concepts by configuring both MLP and FRF.12, and a Challenge Lab to test your troubleshooting knowledge of FRF.12.

Objectives:

After completing this module, you should be able to:

• Evaluate the value of different fragmentation and interleaving techniques
• Explain how LFIs function as quality of service (QoS) components
• Analyze serialization delay and explain how it affects QoS for voice over IP (VoIP)
• Describe the specific applications and use of FRF12 in a Frame Relay network
• Compare and contrast the functions of FRF12 and MLP
• Demonstrate why use of MTU size restriction should be avoided
• Apply the LFI techniques of FRF12 and MLP to a VoIP network
• Demonstrate how CRTP improves QoS for a VoIP network

Labs

• Configure LFI for MLP.
• Configure LFI for FRF.12.
• Challenge Lab