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Cisco 10000 Series User Manual

Cisco 10000 Series
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22-2
Cisco 10000 Series Router Quality of Service Configuration Guide
OL-7433-09
Chapter 22 Hierarchical Scheduling and Queuing
Hierarchical Queuing Framework
Figure 22-1 HQF 3 Layers of Hierarchy
Note The PRE1 and PRE2 use the virtual time management system (VTMS) scheduling algorithm and do not
support the HQF architecture.
Feature History for Hierarchical Queuing Framework
Hierarchical Queuing Framework Scaling
The hierarchical queuing framework (HQF) supports the following interfaces:
61,500 logical interfaces
16,000 physical interfaces
Up to 15 queues per interface (2 priority queues [PQs], 12 nondefault queues, and 1 default queue)
Cisco IOS Release Description Required PRE
Release 12.2(31)SB2 This feature was introduced on the PRE3. PRE3
Release 12.2(33)SB This feature was introduced on the PRE4. PRE3, PRE4
153924
Logical Layer-
VLAN or ATM
VC
Physical Layer-
Interface or ATM
VP
Pkt queues
Class Layer

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Cisco 10000 Series Specifications

General IconGeneral
BrandCisco
Model10000 Series
CategoryNetwork Router
LanguageEnglish

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