Cisco Systems 2.5 Queuing for Outbound Traffic

Chapter29 Quality of Service
Creating a QoS Policy
29-4
Cisco Router and Security Device Manager 2.5 User’s Guide
OL-4015-12
Queuing for Outbound Traffic
In this screen, configure queuing for outbound traffic.
Field Reference
Table29-2 describes the fields in this screen.
DSCP marking (trusted) To use Differentiated Services Code Point (DSCP) markings to
classify traffic, click DSCP marking (trusted). Cisco network
devices such as IP phones and switches add DSCP markings to
packets. Configuring DSCP on the router allows these markings to
be used to classify traffic. If the Cisco IOS image on the router does
not support DSCP marking, this option will not appear.
NBAR protocol discovery
(untrusted)
To use Networked Based Application Recognition (NBAR) protocol
discovery to classify traffic, click NBAR protocol discovery
(untrusted). When an application is recognized and classified by
NBAR, a network can invoke services for that specific application.
NBAR ensures that network bandwidth is used efficiently by
classifying packets and then applying Quality of Service (QoS) to
the classified traffic. If the Cisco IOS image on the rout er does not
support NBAR protocol discovery, this option will not appear.
Table29-1 Interface Selection (continued)
Element Description
Table29-2 Queuing for Outbound Traffic
Element Description
Configure Shaping
To configure shaping for outbound traffic, click Configure Shaping.
Committed Information Rate The Committed Information Rate (CIR) is the rate at which the
interface is to transfer data. Enter the CIR in kilobits per second.
Bandwidth Allocation
Traffic Class A traffic class is a specific type of traffic, such as voice traffic and
routing traffic. The Cisco SDM default traffic classes and
user-created traffic classes are listed in this column.