Differentiated Services (Diffserv) Commands - NETGEAR ProSafe GSM7248 User Manual

User Manual for the NETGEAR 7200 Series Layer 2 Managed Switch Software Version 4

Differentiated Services (DiffServ) Commands

This chapter contains the CLI commands used for the QOS Differentiated Services (DiffServ)
package.
The user configures DiffServ in several stages by specifying:
Class
1.
• creating and deleting classes
• defining match criteria for a class.
Note: The only way to remove an individual match criterion from an existing class definition is to
delete the class and re-create it.
Policy
2.
• creating and deleting policies
• associating classes with a policy
• defining policy statements for a policy/class combination
Service
3.
• adding and removing a policy to/from an inbound interface
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.
Packet processing begins by testing the match criteria for a packet. A policy is applied to a packet
when a class match within that policy is found.
The following class restrictions are imposed by the DiffServ design:
• Nested class support limited to:
– Each class contains at most one referenced class
• Hierarchical service policies not supported in a class definition
Quality of Service (QoS) Commands
sequence number. If the sequence number is not specified by the user, a
sequence number that is one greater than the highest sequence number
currently in use for this interface and direction is used. Valid range is (1
to 4294967295).
202-10102-01, May 2005
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