Implementing Payload Compression

© 2004 Cisco Systems, Inc. All rights re bcran v2.1—10-4

Payload compression (or per-virtual circuit compression) compresses only the data portion of the data stream. The header is left intact.

When designing an internetwork, the customer cannot assume that an application will be transmitted over point-to-point lines. If link compression is used rather than payload compression, the header may not be readable at a particular hop.

Note When using payload compression, the header is left unchanged and packets can be switched through a WAN packet network. Payload compression is appropriate for virtual network services such as Frame Relay and ATM. It uses the STAC compression method discussed earlier.

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