NETGEAR ProSAFE M7100-24X Reference Manual

Quality of Service (QoS) Commands
227
ProSAFE M7100 Managed Switches
Differentiated Services (DiffServ) Commands
This section describes the commands you use to configure QOS Differentiated Services
(DiffServ).
You configure DiffServ in several stages by specifying three DiffServ components:
1. Class
a.
Creating and deleting classes.
b. Defining match criteria for a class.
2. P
olicy
a.
Creating and deleting policies
b. Associating classes with a policy
c. Defining policy statements for a policy/class combination
3. Ser
vice
a.
Adding and removing a policy to/from an inbound or outbound interface
The DiffServ class defines the packet filtering criteria. The attributes of a DiffServ policy define
the w
ay the s
witch processes packets. You can define policy attributes on a per-class instance
basis. The switch applies these attributes when a match occurs.
Packet processing begins when the switch tests the match criteria for a packet. The switch
applies a policy t
o a packet when it finds a class match within that policy.
The following rules apply when you create a DiffServ class:
• Each class can contain a maximum of one referenced (nested) class
• Class definitions do not support hierarchical service policies
A giv
en class definition can contain a maximum of one reference to another class. You can
combine the r
eference with other match criteria. The referenced class is truly a reference and
not a copy, because additions to a referenced class affect all classes that reference it. Changes to
any class definition currently referenced by any other class must result in valid class definitions
for all derived classes, otherwise the switch rejects the change. You can remove a class reference
from a class definition.
The only way to remove an individual match criterion from an existing class definition is to delete
the clas
s and r
e-create it.
Note: The mark possibilities for policing include CoS, IP DSCP, and IP
Precedence. While the latter two are only meaningful for IP packet
types, CoS marking is allowed for both IP and non-IP packets, since it
updates the 802.1p user priority field contained in the VLAN tag of the
layer 2 packet header.

NETGEAR ProSAFE M7100-24X Specifications

General

Brand	NETGEAR
Model	ProSAFE M7100-24X
Category	Switch
Language	English