CCNP: Optimizing Converged Networks v5.0 - Instructor Lab Manual

358 Pages·2007·11.75 MB·English

This document is exclusive property of Cisco Systems, Inc. Permission is granted to print and copy
this document for non-commercial distribution and exclusive use by instructors in the CCNP:
Optimizing Converged Networks v5.0 course as part of an official Cisco Networking Academy
Program.
CCNP: Optimizing Converged Networks Lab Configuration Guide
Topology Diagrams

Figure 1-1: Ethernet Connectivity Diagram for Modules 2 – 5
1 - 9 CCNP: Optimizing Converged Networks v5.0 - Lab Configuration Guide Copyright © 2007, Cisco Systems, Inc
Figure 1-2: Serial Connectivity Diagram for Modules 2 – 5
Discussion
The diagrams shown above describe Ethernet and serial connectivity between
the routers of your pod. These 13 connections, 5 serial and 8 Ethernet, will be
used as the master template for most labs in the CCNP4 (Optimizing
Converged Cisco Networks (ONT)) curricula.
The notable exceptions are the labs in Module 6, which will be discussed later.
All the labs in Modules 2 through 5 assume that you have complete control over
each of the devices in your pod, including access to the switch to configure
VLANs and assign switchports as access ports on a VLAN or as trunk ports.
Although most labs do not make use of every single link, you should cable your
pod according to the both diagrams in order to avoid re-cabling your pod for
each scenario.
Modules 3, 4, 5: Quality of Service Scenarios
The Quality of Service (QoS) labs in the ONT curriculum will use all of the
Ethernet and serial connections in the topology diagrams shown on pages 1
and 2 of this document, but not every connection will be used in every lab.
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Therefore, cable your pod of four routers and one switch with the connections
shown.
The Cisco Networking Academy Program intends to provide access to Cisco’s
Pagent toolset for these labs. The Pagent toolset functions on top of the typical
Cisco IOS image, but comes bundled with the IOS image. You will also need a
license key provided by Cisco for each individual router on which you intend to
use the Pagent-IOS image.
Download the Pagent-IOS image and copy it into R4’s flash memory. When
prompted, use the Machine ID that Pagent generates to retrieve your license
key.
The Quality of Service (QoS) labs in the ONT curriculum suggest that you use
Pagent’s TGN traffic generation tool to test the QoS tools implemented in each
lab. The authors have designed two basic topologies to be used for connectivity
to the traffic generator on R4.
You will use the Basic Pagent Configuration primarily to test QoS tools in
isolation. Traffic is generated on R4’s Fast Ethernet 0/0 interface, which is
destined for R4’s Fast Ethernet 0/1 interface. The purpose being that traffic
traverses your topology from end to end so that you can observe bottlenecks.
The traffic may need to pass over Ethernet VLANs or point-to-point serial links
before arriving back at R4. The IOS configurations for R4, with which you
should begin each of the labs that use the Basic Pagent Configuration, are
provided in ONT Lab 3.1: Preparing for QoS. Figure 2-1 illustrates the general
description of the Basic Pagent Configuration, while Figure 2-2 illustrates a
specific example of how the Basic Pagent Configuration could be applied in a
single-router network topology.
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Figure 2-1: Basic Pagent Configuration

Figure 2-2: A Sample Topology using the Basic Pagent Configuration
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Only one switch should be used for these labs. When the diagrams show two
switches, this is simply for the purpose of showing the logical segmentation of
the VLANs.
Configure the switchports shown in the diagram to access the VLANs shown.
For instance, if you were configuring the general topology for Figure 2-1, you
would use the following configuration:

ALS1# configure terminal
ALS1(config)# interface fastethernet0/1
ALS1(config-if)# switchport access vlan 10
ALS1(config-if)# switchport mode access
ALS1(config-if)# interface fastethernet0/7
ALS1(config-if)# switchport access vlan 10
ALS1(config-if)# switchport mode access
ALS1(config-if)# interface fastethernet0/8
ALS1(config-if)# switchport access vlan 20
ALS1(config-if)# switchport mode access
If you were configuring the Sample Topology shown in Figure 2-2, you would
add the following configuration to ALS1 to connect R1’s FastEthernet 0/1
interface to VLAN 20:

ALS1(config)# interface fastethernet0/2
ALS1(config-if)# switchport access vlan 20
ALS1(config-if)# switchport mode access
Since each of the labs that use the Basic Pagent Configuration may use R1, R2
or R3 as the exit point of the network topology, you will be told which interface
to configure on the switch in the Preparation step of each of the Basic Pagent
Configuration labs.
Key Point
Our intent in providing the configuration in Lab 3.1 is that you would use
these as a basic starting point in these labs so that you do not need to
reconfigure basic connectivity and traffic generation in each scenario.
However, you may indeed need to add additional configuration to the switch
in order to achieve the connectivity desired in each lab.
You will use the Advanced Pagent Configuration primarily to test QoS tools in
integration labs. These labs are designed to demonstrate traffic traversing from
one LAN environment through a WAN connection and back into another LAN
environment.
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Figure 2-3: Advanced Pagent Configuration
After aggregating the two serial links between R3 and R4, the bandwidth across
each link funnels down from 100 Mbps to a maximum of 2.048 Mbps (E1
speed) across the link from R2 to R3. This allows you to see how QoS tools
function at each bottleneck as traffic passes in a loop through R1 (cid:198) R4 (cid:198) R3
(cid:198) R2.
Finally, in Appendix A of this guide, a diagram of possible quality of service
scenarios is given that you can use if you should choose to create your own
labs based on the Advanced Pagent Configuration. We provide this with the
intent that instructors and students experiment with different QoS technologies
beyond the implementations in these labs.
Module 6: Wireless Scenarios
The first three wireless scenarios in the CCNP: Optimizing Converged Networks
(ONT) curriculum corresponds with the wireless scenarios in the CCNP:
Building Multilayer Switched networks (BCMSN) curriculum.
Labs 6.1 and 6.2 guide students through setting up a basic wireless network
using lightweight access points (LWAPs) and a WLAN controller.
Three extension labs then guide students through connecting to the WLANs
and implementing wireless security features. Thus, Labs 6.1 and 6.2 should be
accomplished in entirety before beginning Labs 6.3, 6.4, and 6.5.
Because these labs have been taken from the BCMSN curriculum, they use a
set of switches, a WLAN controller (either a network module or an external
WLAN controller), and a set of access points. You will also need at most two
hosts to accomplish these labs since much of the configuration of the WLAN
controller is done via HTTP.
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Since different academies have elected to buy external WLAN controllers, while
others have elected to buy the one of the NM-AIR-WLC modules, we provide
both topology diagrams. Select the one most appropriate to your pod.

Figure 3-1: Ethernet Connectivity Diagram for Module 6, External WLAN Controller
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Figure 3-2: Ethernet Connectivity Diagram for Module 6, Internal WLAN Controller
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Appendix A

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