top toolbar of the Cisco SDM window. Step
2 Click Quality of Service in the Tasks toolbar at
the left side of the Cisco SDM window. Step 3 Click the
Create QoS Policy tab. Step 4 Click the
Launch QoS Wizard button to launch the wizard. Figure
shows the QoS Wizard screen. Step 5 Cisco SDM QoS
Wizard informs you that it will configure two classes:
real-time and business-critical. Click Next to proceed.
Step 6 Figure shows you how to select an interface. You
are asked to select an interface that you want a QoS policy
applied to. Click Next to proceed. Step 7 The
QoS Policy Generation screen (Figure ) prompts you to enter the
bandwidth percentages for each class. After you enter the
numbers, Cisco SDM automatically calculates the best-effort
class and the bandwidth requirements for each class. Click
Next to proceed to the Summary screen and review the QoS
configuration.
Content 3.5 Implementing
QoS with Cisco SDM QoS Wizard 3.5.3 Reviewing
the QoS Configuration Before delivering the configuration
to the router, review the QoS configuration summary. In the
Summary window, Cisco SDM shows the QoS configuration that was
configured. Review the QoS configuration carefully to ensure
that there are no errors since the wizard applies this
configuration to your router once you click the Finish button.
Figures and present the settings for the
SDMVoice-FastEthernet0/1, SDMVideo-FastEthernet0/1,
SDMSignal-FastEthernet0/1, and SDMSVideo-FastEthernet0/1
classes. Figures and present the settings for the
SDMTrans-FastEthernet0/1, SDMManage-FastEthernet0/1,
SDMRout-FastEthernet0/1, and SDMBulk-FastEthernet0/1 classes.
Figure presents the settings that will be applied with the
SDMScave-FastEthernet0/1 class. The last step is to click
Finish to deliver the configuration to the router. The
Commands Delivery Status window shown in Figure shows the
progress of the delivery of the configuration to the window.
When the window tells you that the commands have been delivered
to the router, click OK to complete your configuration.
Content 3.5 Implementing QoS with Cisco
SDM QoS Wizard 3.5.4 Monitoring QoS Status
After QoS is configured, you can use the following steps to
monitor its status as shown in Figure : Step 1 To enter
monitor mode, click the Monitor icon in the toolbar at
the top of the Cisco SDM window. Step 2 Click QoS
Status in the Tasks toolbar at the left side of the Cisco
SDM window. The traffic statistics appear in bar charts based
on the combination of the selected interval and QoS parameters
for monitoring as follows: - The interval can be changed
using the View Interval drop-down menu. The options available
are Now, Every 1 Minute, Every 5 Minutes, and Every 1
Hour.
- QoS parameters for monitoring include Direction
(input and output) and Statistics (bandwidth, bytes, and
packets dropped).
Content 3.6
Introduction QoS Lab Exercises 3.6.1 Lab 3.1
Preparing for QoS Lab Activity Lab Exercise: Lab
3.1 Preparing for QoS The Quality of Service (QoS) labs for
Modules 3, 4, and 5 have been designed to rely on traffic
generation and measuring tools for testing purposes. Traffic
generation will be used to create streams of traffic that will
flow through your network unidirectionally.
These labs
will use the Cisco Pagent image and toolset for the QoS labs in
the QoS modules. Pagent is a set of traffic generation and
testing tools that runs on top of a Cisco IOS image. Booting a
router with Pagent can be done by acquiring the image through
the Cisco Networking Academy program, loading it into the
router’s flash memory, and entering a license key when prompted
during system boot.
When using the lab configurations
it will be necessary to load the Pagent image on R4. This lab
guides you through creating configurations for the QoS labs.
Content 3.6 Introduction QoS Lab Exercises
3.6.2 Lab 3.2 Installing SDM Lab
Activity Lab Exercise: Lab 3.2 Installing SDM In this lab,
you will prepare a router for access via the Cisco Security
Device Manager (SDM), using some basic commands, to allow
connectivity from the SDM to the router. You will then install
the SDM application locally on a host computer. Finally, you
will install SDM onto the flash memory of a router.
Content 3.6 Introduction QoS Lab Exercises
3.6.3 Lab 3.3 Configuring QoS with SDM Lab
Activity Lab Exercise: Lab 3.3 Configuring QoS with SDM
Cisco Security Device Manager employs a basic Quality of
Service (QoS) configuration wizard that can be used to apply
some basic QoS tools to a router’s interfaces. Normally, you
would configure and deploy QoS tools on the command-line
interface (CLI) without the benefit of a graphical user
interface (GUI). However, SDM’s QoS wizard provides a useful
introduction to QoS tools. Thus, we begin our exploration of
QoS tools using the SDM GUI.
Content Summary This
module describes the difference between nonconverged and
converged networks and how converged IP networks can suffer
from poor quality of service (QoS) for several reasons,
including low bandwidth, excessive delay, jitter, and packet
loss. The module explains the steps used to implement Cisco IOS
QoS and how implementing QoS decreases the effect of poor QoS
factors with the use of queuing, compression, prioritization,
and link efficiency mechanisms. The three basic QoS models,
best effort, Integrated Services (IntServ), and Differentiated
Services (DiffServ) are defined: The best-effort model does not
provide any QoS, while the IntServ model relies on applications
signaling QoS requirements to the network, and DiffServ is the
most scalable model for implementing the QoS required for
modern converged networks. The four different implementation
techniques for QoS are the legacy command-line interface (CLI)
method used for basic QoS deployments, the Modular QoS CLI
(MQC) for high-level deployments and QoS fine-tuning, Cisco
AutoQoS for general QoS setups, and Cisco Router and Security
Device Monitor (SDM) QoS wizard, a web-based application for
QoS deployments in the enterprise environment.