Cisco 10000 Series User Manual

8-4
Cisco 10000 Series Router Quality of Service Configuration Guide
OL-7433-09
Chapter 8 Prioritizing Services
Child Service Policy Allowed Under Priority Class
You cannot configure the priority command and the priority level command on different classes in the
same policy map.
Feature History for Multi-Level Priority Queues
Child Service Policy Allowed Under Priority Class
The Cisco 10000 series router supports the Child Service Policy Allowed Under Priority Class feature
in Cisco IOS Release 12.2(31)SB2. This feature allows you to attach a child policy with non-queuing
features to a priority class. The priority class must be in the middle-level policy of a three-level
hierarchical policy or in the parent policy of a two-level hierarchical policy (nested policy).
For more information, see the Child Service Policy Allowed Under Priority Class, Release 12.2(31)SB2
feature module.
Interfaces Supporting Priority Queuing
The following describes interface support for priority queuing using the priority command:
Interfaces Supporting the priority Command
• Physical
• Multilink PPP and Multilink Frame Relay
• ATM shaped (peak cell rate is specified) unspecified bit rate (UBR) PVCs and point-to-point
subinterfaces
• ATM constant bit rate (CBR) PVCs and point-to-point subinterfaces
• ATM variable bit rate (VBR) PVCs and point-to-point subinterfaces
• Label-controlled ATM (LC-ATM) subinterfaces *
• Frame Relay PVCs, point-to-point subinterfaces, and map classes *
• Ethernet VLANs *
* Requires a specific type of hierarchical policy. For more information, see Chapter 13, “Defining QoS
for Multiple Policy Levels.”
Note The router only supports the priority command on outbound interfaces.
Interfaces Not Supporting the priority Command
• ATM unshaped (no peak cell rate specified) UBR PVCs and point-to-point subinterfaces
• IP tunnel
• Virtual-access (See the “VAI QoS Inheritance” section on page 4-24.)
Cisco IOS Release Description Required PRE
Release 12.2(31)SB2 This feature was introduced and implemented on the
Cisco 10000 series router for the PRE3.
PRE3

Cisco 10000 Series Specifications

General

Brand	Cisco
Model	10000 Series
Category	Network Router
Language	English