Pre3; Pre2, Pre3, Pre4; K Policy Maps; Policy-Map Command - Cisco 10000 Series Configuration Manual

Chapter 3 Configuring QoS Policy Actions and Rules
Table 3-1
Cisco IOS Release
Release 12.2(27)SBB
Release 12.2(31)SB2
and later releases
Release 12.2(33)SB and
later releases
1. Depending on the complexity of your configuration
2. Including the class-default class

8K Policy Maps

The 8K Policy Maps feature enables the router to support a maximum of 8192 unique policy maps for
the PRE3 and PRE4, doubling the number supported in previous releases. The router supports up to 4096
policy maps for the PRE2. To configure 8192 policy maps, the router must be running Cisco IOS
Release 12.2(33)SB. The router supports a maximum of 64 classes per policy map.
The numbers above include both configured and attached policies. Each policy-map command counts
Note
as one policy map, which counts against the system limit.
In releases through Cisco IOS Release 12.2(31)SB, the router supports a maximum of 4096 unique
policy maps for the PRE2 and PRE3.
For every additional policy map you create, approximately 2385 + (number of classes x 188) bytes of
memory are used. For example, 8192 policy maps with 64 classes in each uses approximately 118 MB
of memory. This is subtracted from memory that is available for such things as PPP sessions.
If you attempt to create 8193 policy maps, the following error message displays:
No more than 8192 policy maps can be defined.
The number of policy map instances supported on the router depends on the number of interfaces
(VCCIs) configured. The maximum number of interfaces allowed is 61,500. Therefore, the theoretical
maximum number of policy instances equals 2 x 61,500.
The router supports 512,000 policer instances and 4095 class maps.

policy-map Command

To create or modify a policy map, use the policy-map command in global configuration mode. Use the
no form of the command to remove a policy map. This command has no default behavior or values.
policy-map policy-map-name
no policy-map policy-map-name
OL-7433-09
System Limits for Policy Maps
Processor
PRE2

PRE3

PRE3, PRE4
PRE2
Cisco 10000 Series Router Quality of Service Configuration Guide
1
Policy Maps per System
(up to this amount)
4096
4096
8192
4096
QoS Policies
No. Classes per
2
Policy Map
64
64
64
64
3-3