Compression Header compression or data compression

© 2004 Cisco Systems, Inc. All rights reserved. bcran v2.1—10-16

Link-efficiency mechanisms work best on low speed data links that have large MTU data packets as well as interactive traffic such as Telnet and Voice over IP (VoIP).

Cisco IOS QoS software offers two link efficiency mechanisms that work in conjunction with queuing and traffic shaping to manage existing bandwidth more efficiently and predictably:

■ Link Fragmentation and Interleaving (LFI): The network fragments data packets and interleaves voice packets to improve the link efficiency.

Compressed Real-Time Protocol (CRTP): The network protocol improves link efficiency as it compresses headers to reduce the overhead of converged traffic.

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