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v1.0, December 2007
Chapter 5 Configuring QoS and Security
This chapter describes how to use the QoS tab and the Security tab:
•“Using the QoS Tab”
•“Using the Security Tab”

Using the QoS Tab

The navigation tabs on the top of the home page include a QoS tab that lets you manage your
GS108T Gigabit Smart Switch using features under the following main menu commands and
subcommnands:
•“CoS”
•“Basic—QoS Global Configuration”
•“Basic—Rate Limit”
•“Advanced—801.1p to Queue Mapping”
•“Advanced—DSCP Priority Mapping”
The sections that follow in this chapter cover these features and tell you how to configure them in
the GS108T Smart Switch.

CoS

The class of service (CoS) menu lets you classify specific traffic at the Layer 2 level by
manipulating the CoS bits, thereby allowing you to configure quality of service (QoS).

Basic—QoS Global Configuration

There are two possible priority tag settings for the QoS; that is, there are two QoS modes:
•802.1p-based. The eight priority tags that are specified in IEEE 802.1p are p0 to p7. The QoS
setting lets you map each of the eight priority levels to one of four internal hardware priority
queues: High, Normal, Low, and Lowest.