Description - Cisco ASR 5000 series Product Overview

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CDMA2000 Wireless Data Services

Description

The system supports the Van Jacobson (VJ) IP header compression algorithms by default for subscriber traffic.

The VJ header compression is supported as per RFC 1144 (CTCP) header compression standard developed by V.

Jacobson in 1990. It is commonly known as VJ compression. It describes a basic method for compressing the headers of

IPv4/TCP packets to improve performance over low speed serial links.

By default IP header compression using the VJ algorithm is enabled for subscribers. You can also turn off IP header

compression for a subscriber.

System Enhanced Feature Configuration Guide.

DSCP Marking

Provides support for more granular configuration of DSCP marking.

For different Traffic class, the PDSN supports per-service and per-subscriber configurable DSCP marking for Uplink

and Downlink direction based on Allocation/Retention Priority in addition to the current priorities.

For more information on IP header compression support, refer IP Header Compression chapter in

Features and Functionality—Base Software ▀

Cisco ASR 5000 Series Product Overview ▄