Cisco 10000 Series User Manual

18-5
Cisco 10000 Series Router Quality of Service Configuration Guide
OL-7433-09
Chapter 18 Regulating and Shaping Subscriber Traffic
Subscriber-Based IP Quality of Service
Feature History for Per User Multiservice Rate Limiting
System Limits for Per User Multiservice Rate Limiting
Table 18-1 lists the system limits for the components used to configure per user multiservice rate
limiting.
Depending on the complexity of your configuration, the Cisco 10000 series router supports up to 4,096
policy maps. In complex configurations the maximum number of policy maps can be as small as a few
hundred. Additionally, when you use percent-based policing in a service policy, the system may convert
a single customer-configured service to multiple service policies (which count against the 4096 limit).
The system uses one such service policy for each different speed interface that uses a service policy with
percent-based policing
Each policy-map command counts as one policy map and applying the same policy map on different
speed interfaces also counts as an extra policy map. The policy-map command syntax is unchanged.
Restrictions and Limitations for Per User Multiservice Rate Limiting
Do not apply service policies with CBWFQ actions to a VAI using a virtual template. The Cisco 10000
series router supports queuing only when you apply the service policy to a VC.
Per Session Service Policy Using RADIUS
The per session service policy using RADIUS feature enables a subscriber management server (SMS),
typically a RADIUS server, to dynamically change the traffic policing parameters for a user session.
The RADIUS server maintains user profiles to define subscriber parameters. The per session rate
limiting parameter is defined in the RADIUS authentication, authorization, and accounting (AAA) user
profiles. When a user logs into the network, the Cisco 10000 series router sends an authorization request
to the RADIUS server. If the user is a registered user, RADIUS sends the user profile to the router. The
user profile might include a per session service policy. If parameter values in the user profile change,
RADIUS sends the changed parameters when the user logs in to the system again.
Cisco IOS Release Description Required PRE
Release 12.2(16)BX The per user multiservice rate limiting feature was
introduced on the PRE2.
PRE2
Release 12.2(28)SB This feature was integrated in Cisco IOS
Release
12.2(28)SB for the PRE2.
PRE2
Ta b l e 18-1 System Limits for Per User Multiservice Rate Limiting Components
Component Maximum Number Supported
Access Lists 30,000 per system
Class Maps 256 per system (including the class-default class)
Policy Maps 4096 per system
Classes 127 per policy map
Match Statements 16 per class map

Cisco 10000 Series Specifications

General

Brand	Cisco
Model	10000 Series
Category	Network Router
Language	English