3-4
Cisco 10000 Series Router Quality of Service Configuration Guide
OL-7433-09
Chapter 3 Configuring QoS Policy Actions and Rules
Types of QoS Actions
Syntax Description
Usage Guidelines for the policy-map Command
You can configure class policies in a policy map only if the classes have match criteria defined for them
in a class map using the
class-map
and
match
commands.
You can attach a single policy map to multiple interfaces concurrently. After attaching the policy to
multiple interfaces, if you modify the policy such that it is no longer usable to the interfaces (for
example, the available bandwidth on the interface cannot accommodate the total bandwidth requested by
the class policies), the router removes the multiple attachments from the interfaces.
Types of QoS Actions
The following sections describe the QoS actions supported on the Cisco 10000 series router. These are
the actions that you configure in a policy map for specific traffic classes.
•
Input and Output Policy Actions, page 3-4
•
Policy Map Actions—Releases Prior to Cisco IOS Release 12.0(17)SL, page 3-7
•
Policy Map Actions—Cisco IOS Release 12.0(17)SL and Later Releases, page 3-10
•
Policy Map Actions—Cisco IOS Release 12.0(20)ST and Later Releases, page 3-10
•
Policy Map Actions—Cisco IOS Release 12.0(22)S and Later Releases, page 3-11
Input and Output Policy Actions
The Cisco 10000 series router does not impose any restrictions on the classification definitions you
include in a class map. However, it does limit the input and output policy actions that you can define in
a policy map. These limitations are based on the type of interface on which you apply the service policy.
As indicated in
Table 3-2
and
Table 3-3
, the interface types are:
•
Normal interface, including variable bit rate (VBR) virtual circuits (VCs) on ports configured in pxf
queuing mode
•
Tag interface (MPLS VPN)
•
Virtual access interface (VAI)
•
ATM unspecified bit rate (UBR) VCs and VCs configured on ports in no atm pxf queuing mode
policy-map-name
Is the name of the policy map. The name can be a maximum of 40
alphanumeric characters.
