Creating qos policies, Figure 123: showing the rules for a class map, Policy map – Microsens MS453490M Management Guide User Manual

Page 239

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| Quality of Service

Creating QoS Policies

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To show the rules for a class map:

1.

Click Traffic, DiffServ.

2.

Select Configure Class from the Step list.

3.

Select Show Rule from the Action list.

Figure 123: Showing the Rules for a Class Map

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Use the Traffic > DiffServ (Configure Policy) page to create a policy map

that can be attached to multiple interfaces. A policy map is used to group

one or more class map statements (

page 236

), modify service tagging, and

enforce bandwidth policing. A policy map can then be bound by a service

policy to one or more interfaces (

page 249

).

Configuring QoS policies requires several steps. A class map must first be

configured which indicates how to match the inbound packets according to

an access list, a DSCP or IP Precedence value, or a member of specific

VLAN. A policy map is then configured which indicates the boundary

parameters used for monitoring inbound traffic, and the action to take for

conforming and non-conforming traffic. A policy map may contain one or

more classes based on previously defined class maps.

The class of service or per-hop behavior (i.e., the priority used for internal

queue processing) can be assigned to matching packets. In addition, the

flow rate of inbound traffic can be monitored and the response to

conforming and non-conforming traffic based by one of three distinct

policing methods as described below.

Police Flow Meter – Defines the committed information rate (maximum

throughput), committed burst size (burst rate), and the action to take for

conforming and non-conforming traffic.

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