Input Rate-Limiting And Silent Mode Operation; How To Use Control Plane Policing; Defining Control Plane Services - Cisco ASR 900 Series Configuration Manual

Input Rate-Limiting and Silent Mode Operation

Input Rate-Limiting and Silent Mode Operation
A router is automatically enabled to silently discard packets when you configure input policing on control
plane traffic using the service-policy input policy-map-name command.
Rate-limiting (policing) of input traffic from the control plane is performed in silent mode. In silent mode, a
router that is running Cisco IOS XE software operates without receiving any system messages. If a packet
that is entering the control plane is discarded for input policing, you do not receive an error message.

How to Use Control Plane Policing

Defining Control Plane Services

Perform this task to define control plane services, such as packet rate control and silent packet discard for the
RP.
Before You Begin
Before you enter control-plane configuration mode to attach an existing QoS policy to the control plane, you
must first create the policy using MQC to define a class map and policy map for control plane traffic.
• Platform-specific restrictions, if any, are checked when the service policy is applied to the control
Note
• Input policing does not provide any performance benefits. It simply controls the information that is
SUMMARY STEPS
1. enable
2. configure terminal
3. control-plane
4. service-policy inputpolicy-map-name
5. end
DETAILED STEPS
Command or Action
Step 1 enable
Example:
Device> enable
QoS: Policing and Shaping Configuration Guide, Cisco IOS XE Release 3S (Cisco ASR 900 Series)
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plane interface.
entering the device.
Purpose
Enables privileged EXEC mode.
• Enter your password if prompted.
Control Plane Policing