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Cisco 10000 Series Router Quality of Service Configuration Guide
OL-7433-09
Chapter 6 Policing Traffic
Configuring Traffic Policing
•
The set-cos-inner-transmit police action sets only the inner CoS bits.
•
The router supports the set-cos-inner-transmit policing action only on QinQ subinterfaces. If you
configure this policing action in a flat policy map or a 2-level hierarchical policy and attach the
policy to an interface that is not a QinQ subinterface, the router displays an error message. However,
if you configure the set-cos-inner--transmit action in a 3-level policy map and attach the policy to a
non-QinQ subinterface, no error message displays and the router appears to accept the policy.
Therefore, we recommend that you do not use the set-cos-inner-transmit policing action in a 3-level
policy map attached to non-QinQ subinterfaces.
•
The router supports the set-clp-transmit and set frde-transmit police actions on the ingress for an
Any Transport over MPLS (AToM) Layer 2 VPN (L2VPN) configuration only.
•
The router supports only the following combinations of dual actions on the AToM L2VPN ingress:
–
set-clp-transmit and set-mpls-exp-imposition-transmit
–
set-frde-transmit and set-mpls-exp-imposition-transmit
•
The router does not perform extensive error checking to reject invalid combinations of dual actions.
If you provide unsupported combinations, the results may be unpredictable.
•
On the PRE3 and PRE4, the router enters policy-map-class-police configuration mode after you
enter the
police
command, regardless of whether the command specifies a single action or dual
actions.
•
On the PRE3 and PRE4, when specifying multiple actions, the router displays each action on a
separate line.
Configuring Traffic Policing
To configure traffic policing, perform any of the following configuration tasks:
•
Configuring Single-Rate Traffic Policing Based on Bits per Second, page 6-28
•
Configuring Percent-Based Policing, page 6-32
•
Configuring Two-Rate Policing, page 6-35
•
Marking Traffic Using Police Actions, page 6-36
•
Configuring Dual Police Actions, page 6-37
For more information about classifying traffic and creating QoS service policies, see
Chapter 2,
“Classifying Traffic”
and
Chapter 3, “Configuring QoS Policy Actions and Rules.”
