Differentiated Services - Planet Networking & Communication WGS3-24000 User Manual

4.5.4 Differentiated Services

Packets are filtered and processed based on defined criteria. The filtering criteria is defined by a class. The processing is
defined by a policy's attributes. Policy attributes may be defined on a per-class instance basis, and it is these attributes that are
applied when a match occurs.
The configuration process begins with defining one or more match criteria for a class. Then one or more classes are added to a
policy. Policies are then added to interfaces.
Packet processing begins by testing the match criteria for a packet. The 'all' class type option defines that each match criteria
within a class must evaluate to true for a packet to match that class. The 'any' class type option defines that at least one match
criteria must evaluate to true for a packet to match that class. Classes are tested in the order in which they were added to the
policy. A policy is applied to a packet when a class match within that policy is found.
4.5.4.1 Diffserv Configuration
Selection Criteria
DiffServ Admin Mode - This lists the options for the mode, from which one can be selected. The default value
。
is 'enable'. While disabled, the DiffServ configuration is retained when saved and can be changed, but it is not
activated. When enabled, Diffserv services are activated.
Non-Configurable Data
Class table - Displays the number of configured DiffServ classes out of the total allowed on the switch.
。
Class Rule table - Displays the number of configured class rules out of the total allowed on the switch.
。
Policy table - Displays the number of configured policies out of the total allowed on the switch.
。
Policy Instance table - Displays the number of configured policy class instances out of the total allowed on
。
the switch.
Policy Attributes table - Displays the number of configured policy attributes (attached to the policy class
。
instances) out of the total allowed on the switch.
Service table - Displays the number of configured services (attached to the policies on specified interfaces)
。
out of the total allowed on the switch.
Figure 4-5-11 Diffserv Configuration
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