R0106-HP MSR Router Series ACL and QoS Configuration Guide(V7)
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The router is enabled with predefined control plane QoS policies by default. A predefined control plane
QoS policy uses the protocol type or protocol group type to identify the type of packets sent to the control
plane. You can reference protocol types or protocol group types in if-match commands in traffic class
view for traffic classification. Then you can reconfigure traffic behaviors for these traffic classes as
required. You can use the display qos policy control-plane pre-defined command to display predefined
control plane QoS policies.
If the hardware resources of an interface card are insufficient, applying a QoS policy to the control plane
might fail on the interface card. The system does not automatically roll back the QoS policy already
applied to the MPU or other interface cards. To ensure consistency, you must use the undo qos apply
policy command to manually remove the QoS policy configuration applied to them.
Configuration procedure
To apply the QoS policy to the control plane:
Ste
p
Command
Remarks
1. Enter system view.
system-view N/A
2. Enter control plane view.
• MSR2000/MSR3000:
control-plane
• MSR4000:
control-plane slot slot-number
N/A
3. Apply the QoS policy to
the control plane.
qos apply policy policy-name inbound
By default, no QoS policy is
applied to a control plane.
Applying the QoS policy to the management interface control
plane
The following matrix shows the feature and hardware compatibility:
Hardware Feature com
p
atibilit
y
MSR2000 No
MSR3000 No
MSR4000 Yes
If the transmission rate of the packets sent from the management interface to the control plane exceeds
the processing capability of the control plane, the control plane will fail to handle the packets correctly
or timely. As a result, protocol performance is affected.
To address this problem, apply a rate-limiting QoS policy to the packets sent from the management
interface to the control plane. This makes sure the control plane can correctly receive, transmit, and
process packets from the management interface.
By default, the management interface is enabled with predefined rate-limiting QoS policies by default. A
predefined rate-limiting QoS policy uses the protocol type or protocol group type to identify the type of
packets sent to the management interface. You can reference protocol types or protocol group types in
if-match commands in traffic class view for traffic classification and then reconfigure traffic behaviors for
these traffic classes as required. You can use the display qos policy control-plane management
pre-defined command to display the traffic behaviors.
To apply the QoS policy to the management interface control plane: