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Software Configuration of ATM ISE Line Cards for Cisco 12000 Series Routers
See the
information on the output from these commands.
Configuring Cell-Based Traffic Policing on AToM VCs
Traffic policing is configured using the Modular QoS CLI. In order to configure traffic policing, you
need to do the following:
•
•
•
For Layer 2 traffic, you can configure traffic policies that will guarantee a particular quality of service
(QoS) traffic class. This is done using the police rate command in policy-map class configuration mode.
The supported policing configurations are shown in
Table 7
Conformance Definition GCRA
CBR
VBR.1
VBR.2
VBR.3
UBR.1
1. GCRA=Generic Cell Rate Algorithm
If single-bucket policing is used, there is a single policy definition using the rate and burst tolerance
parameters. For a two-bucket policer, the rate and burst tolerance are taken from the parent policy, and
the SCR and ATM maximum burst size (MBS) values are taken from the child policy.
This section describes some of the most common tasks that are necessary to configure QoS traffic
policing on AToM VCs. For more detailed information regarding MQC, see the
QoS CLI" section on page
•
•
•
•
•
•
Restrictions
The following restrictions apply to policing on the 4-port ATM ISE line card:
•
"Troubleshooting ATM Errors on the 4-Port ATM ISE Line Card" section on page 76
Define a traffic class to classify the traffic (See the
more detailed information.)
Create a traffic policy with QoS features that determine how to treat classified traffic
Attach the traffic policy to a PVC
Supported Policing Configurations
CLP(0+1)
CLP(0+1)
CLP(0+1)
CLP(0+1)
CLP(0+1)
84.
Configuring CBR or UBR.1 Policing, page 64
Configuring VBR.1 Policing, page 65
Configuring VBR.2 Policing, page 67
Configuring VBR.3 Policing, page 69
Attaching a Service Policy to a PVC, page 72
Troubleshooting Tips, page 73
The service-policy command must be used in l2transport mode. The EXP bit setting applies
uniformly for CLP0 and CLP1 cells.
How to Configure AToM VCs on the 4-Port ATM ISE Line Card
"Defining a Traffic Class" section on page 84
Table
1
PCR Flow
Action
Discard
Discard
Discard
Discard
Discard
7.
GCRA SCR Flow
Action
N/A
N/A
CLP(0+1)
Discard
CLP(0)
Discard
CLP(0)
Tagging
N/A
N/A
"Configuring Modular
Cisco IOS Release 12.0(27)S
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Troubleshooting
