Netgear Switch L3 User Manual download pdf (Page 179)

7000 Series L3 Managed Switch Reference Manual for Software v2.0

CLI Commands: Differentiated Services 9-1

Chapter 9

CLI Commands: Differentiated Services

This chapter contains the CLI commands used for the QOS Differentiated Services (DiffServ)

package.

The user configures DiffServ in several stages by specifying:

• Class

– creating and deleting classes

– defining match criteria for a class

• Policy

– creating and deleting policies

– associating classes with a policy

– defining policy statements for a policy/class combination

•Service

– adding and removing a policy to/from a directional (i.e., inbound, outbound) interface

Additionally, the user can display summary and detailed information for each of the above

configuration elements. All configuration information is accessible via the CLI, Web, and SNMP

user interfaces.

Note that the type of class - all, any, or acl - has a bearing on the validity of match criteria specified

when defining the class. A class type of 'any' processes its match rules in an ordered sequence;

additional rules specified for such a class simply extend this list. A class type of ‘acl’ obtains its

rule list by interpreting each ACL rule definition at the time the Diffserv class is created.

Differences arise when specifying match criteria for a class type 'all', since only one value for each

non-excluded match field is allowed within a class definition. If a field is already specified for a

class, all subsequent attempts to specify the same field fail, including the cases where a field can

be specified multiple ways through alternative formats. The exception to this is when the 'exclude'

option is specified, in which case this restriction does not apply to the excluded fields. The only

way to remove an individual match criterion from an existing class definition is to delete the class

and re-create it.

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Netgear Switch L3 User Manual Page 179