Cisco Cisco IOS Software Release 12.4(9)T
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FRF .20 Support
First Published: June 19, 2006
Last Updated: November 17, 2006
Last Updated: November 17, 2006
The FRF .20 Support feature provides support for IP header compression (IPHC) over Frame Relay as
described in the Frame Relay Forum Implementation Agreement FRF .20. Before the FRF .20 Support
feature was introduced, Cisco IOS supported IPHC only on Cisco-encapsulated data-link connection
identifiers (DLCIs) using a proprietary compression technique. This feature adds support for IPHC on
IETF-encapsulated DLCIs.
described in the Frame Relay Forum Implementation Agreement FRF .20. Before the FRF .20 Support
feature was introduced, Cisco IOS supported IPHC only on Cisco-encapsulated data-link connection
identifiers (DLCIs) using a proprietary compression technique. This feature adds support for IPHC on
IETF-encapsulated DLCIs.
This feature module describes how to configure FRF .20 IPHC over Frame Relay. This feature module
also describes how to configure Enhanced Compressed Real-Time Transport Protocol (ECRTP).
also describes how to configure Enhanced Compressed Real-Time Transport Protocol (ECRTP).
Finding Feature Information in This Module
Your Cisco IOS software release may not support all of the features documented in this module. To reach
links to specific feature documentation in this module and to see a list of the releases in which each feature is
supported, use the
links to specific feature documentation in this module and to see a list of the releases in which each feature is
supported, use the
Finding Support Information for Platforms and Cisco IOS Software Images
Use Cisco Feature Navigator to find information about platform support and Cisco IOS software image
support. Access Cisco Feature Navigator at
support. Access Cisco Feature Navigator at
. You must have an account on
Cisco.com. If you do not have an account or have forgotten your username or password, click Cancel at
the login dialog box and follow the instructions that appear.
the login dialog box and follow the instructions that appear.
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