beautypg.com

Diffserv wizard overview – NETGEAR M4350-24F4V 24-Port 10G SFP+ Managed AV Network Switch User Manual

Page 596

background image

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
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.

DiffServ wizard overview

The DiffServ wizard enables DiffServ on the switch by creating a traffic class, adding the
traffic class to a policy, and then adding the policy to the ports and LAGs that you select.
The DiffServ wizard does the following:

Creates a DiffServ class and defines match criteria used as a filter to determine if
incoming traffic meets the requirements to be a member of the class.

Sets the DiffServ class match criteria based on traffic type selection as follows:

VOIP: Sets the match criteria for VoIP traffic to the UDP protocol.

-

-

HTTP: Sets the match criteria for HTTP traffic to the HTTP destination port.

-

FTP: Sets match criteria for FTP traffic to the FTP destination port.

-

Telnet: Sets the match criteria for Telnet traffic to the Telnet destination port.

-

Every: Sets the match criteria for all traffic.

Sets a committed rate for the selected traffic type.

Creates a Diffserv policy and adds it to the DiffServ class.

Optionally, enables policing and sets the Diffserv policy as a simple policy.

When policing is enabled, traffic that conforms to the class match criteria is processed
according to the outbound priority selection, which handles conforming traffic as
follows:

-

High: Maps the traffic priority to DiffServ class Expedited Forwarding (EF).

-

Medium: Maps the traffic priority to DiffServ class Assured Forwarding (AF31).

-

Low: Maps the traffic priority to DiffServ class Best Effort (BE).

Main User Manual

596

Configure Quality of Service

Fully Managed Switches M4350 Series Main User Manual