Cisco Cisco IOS Software Release 12.3(4)T

This document describes the VRF and MQC Hierarchical Shaping in PXF feature in 
Cisco IOS Release 12.2(15)B and Cisco IOS Release 12.3(4)T. It includes the following sections:

VRF and MQC Hierarchical Shaping in PXF implements Virtual Route Forwarding (VRF) and Modular 
Quality of Service Command-Line Interface (MQC) hierarchical shaping in the Parallel Express 
Forwarding (PXF) path.

The Parallel Express Forwarding (PXF) processor enables parallel IP multipacket processing functions, 
working with the Route Processor (RP) to provide accelerated packet switching, as well as accelerated 
IP Layer 3 feature processing.

For more information about PXF, including troubleshooting information, refer to the

.

12.2(15)B

This feature was introduced on the Cisco 7200 series and Cisco 7401ASR.

12.3(4)T

This feature for the Cisco 7200 series and Cisco 7401ASR was integrated 
into Cisco IOS Release 12.3(4)T.