User Manual

M4300 Intelligent Edge Series Fully Managed Stackable Switches
Configure Quality of Service User Manual483
5. Select the administrative mode for DiffServ:
• Enable. Dif
ferentiated Services are active. This the default mode.
• Disable.
The DiffServ configuration is retained and can be changed but it is not
active.
6. Click the Apply button.
Your settings are saved.
The following table describes the nonconfigurable information that is displayed.
Configure the Global DiffServ Settings
Packets are filtered and processed based on defined criteria. The filtering criteria are defined
by a class. The processing is defined by a policy's attributes. Policy attributes can 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
specifies that each match criteria within a class must evaluate to true for a packet to match
that class. The any class type option specifies 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.
Table 184. DiffServ Configuration
Field Description
Class Table The current and maximum number of classifier entries in the table.
Dif
fServ classifiers differentiate among traffic types.
Class Rule Table The current and maximum number of class rule entries in the table.
Class rules specify the match criteria that belong to a class definition.
Policy Table The current and maximum number of policy entries in the table. The
policy determines the traf
fic conditioning or service provisioning actions
applied to a traffic class.
Policy Instance Table The current and maximum number of policy-class instance entries in
the table.
A policy-class instance is a policy that is associated with an
existing DiffServ class.
Policy Attributes Table The current and maximum number of policy attribute entries in the
table.
A policy attribute entry attaches various policy attributes to a
policy-class instance.
Service Table The current and maximum number of service entries in the table. A
service entry associates a Dif
fServ policy with an interface and inbound
or outbound direction.