© 2003, Cisco Systems, Inc. All rights reserved. FWL 1.0—11-1 111 © 2003, Cisco Systems, Inc. All rights reserved

© 2003, Cisco Systems, Inc. All rights reserved. FWL 1.0—11-1111© 2003, Cisco Systems, Inc. All rights reserved.

© 2003, Cisco Systems, Inc. All rights reserved. FWL 1.0—11-2

Module 11

Troubleshooting, Management, Monitoring, and Diagnostics


Overview

This module will cover the basics of troubleshooting. It begins by examining a methodology that breaks down the process of troubleshooting into manageable steps. Next, a variety of tools will be introduced that are used to troubleshoot a WLAN. These tools include cable testers, sniffers, and spectrum analyzers. A brief discussion of system logging and single point of failure troubleshooting will be presented. Finally, enterprise management tools will be explored.


Learning Objectives

•Demonstrate proficiency using TCP/IP utilities

•Identify the common tools used to troubleshoot a wireless network

•Identify single point failures on a WLAN.

•Configure SNMP and Syslog logging

•Identify basic facts about CiscoWorks WLSE and ACAT tool.

•Identify facts about Wavelink Mobile Manager™ and Airwave.


Key terms

• Deductive Reasoning

• Inductive Reasoning

• Sniffers

• Spectrum Analyzer

• Cable Analyzer

• Gauss Meter

• Syslog

• SNMP

• WLSE


General Approach to Troubleshooting


Logic Methods


Problem Solving Model


Routed and Routing Protocols


ISO


IOS Network Management Model


IOS Network Management Model (Cont)


OSI Troubleshooting


TCP/IP and OSI Comparison


Troubleshooting Layers


TCP/IP Diagnostic Tools


Diagnostic Tools


Multimeter


Cable Meter


Hardware Sniffers

Fluke Networks Berkeley Varitronics Systems


Software Sniffers

http://www.personaltelco.net/index.cgi/WirelessSniffer?action=show&redirect=WirelessSniffers

http://www.personaltelco.net/index.cgi/WirelessSniffer?action=show&redirect=WirelessSniffers


Spectrum Analyzer

Anritsu Tektronix


Gauss Meter


Cable and Antenna Analyzer


WLAN Troubleshooting


Firmware

AP or Bridge ACU Version and NDIS Drivers


Configuration


AP and Bridge LEDs


NIC LEDs


System Message Logging


Event Log Page


Event Log Configuration Option Page


Enable and Define a Syslog Server


Configure Logging via IOS CLI


SNMP Architecture


Configure SNMP via GUI


Configure SNMP via CLI


Syslog and SNMP Applications


WLAN Management Solutions


Enterprise Network Inclusion of Wireless


Enterprise Topology with WLAN Access


Wireless LAN Challenges

The lack of effective management has inhibited the growth of large-scale wireless networks due to . . .• The challenge of configuring hundreds or

thousands of access points

• Security risks opened up by mis-configurations

• Lack of sufficient tools for trouble shooting, performance analysis and capacity planning


CiscoWorks WLSE Product Summary

Specialized application for managing the Cisco WLAN

Centralized configuration of large deployments of Cisco APs

Security policy and fault/performance monitoring of the Cisco WLAN infrastructure

Turnkey, appliance based management solution


Key Features

Centralized, template-based configuration of access points and bridges with user defined groups

Access point and bridge misconfiguration alerts to minimize security vulnerabilities

Proactive fault and performance monitoring of access points, bridges, LEAP server, and attached switch


Key Features (cont.)

Access point utilization, summary, current & historical client association reports with XML, CSV, PDF data export

Secure HTML-based UI

Upper-layer NMS/OSS integration via northbound trap, SYSLOG

System & User Defined Groups


Managing the WLAN with WLSE

Can launch from CiscoWorks desktop or stand alone

Manage to switch port (AP is attached to)

Can collect SNMP information

Up to 500 access points (across any IP network)

Build a template


Managing the WLAN with WLSE (cont.)

Verify configuration across access points

Alarm for configuration change

Alarm for misconfiguration

Centralized template-based configuration

Configuration by groups


WLSE Value Propositions

Reduces WLAN total cost of ownership by saving time and resources in configuring a large number of access points and bridges

Minimizes wireless LAN security vulnerabilities by providing alerts for misconfigured access points and bridges


WLSE Value Propositions (cont.)

Improves wireless LAN uptime by proactively monitoring wireless LAN infrastructure and “LEAP authentication server”

Helps in wireless LAN capacity planning by identifying the most utilized access points

Accelerates client problem troubleshooting by generating client association reports


Cisco Structured Wireless Aware Network


Cisco Aironet Configuration Administration Tool (ACAT)


ACAT Installation Options


Who is Wavelink?

An industry leading developer of wireless solutions to deploy and manage wireless applications and infrastructure

10+ years experience delivering industrial-grade wireless solutions

More than 40,000 installations worldwide

Enterprise-class solutions for Top Fortune 1000 Companies


Mobile Manager™ Advantages

Centralized management console for WLAN infrastructure

Elimination of individual access point configuration requirements

Manageable mechanisms for maintaining WLAN privacy and access control

Proactive event response options

Single interface to multi-vendor systems


Mobile Manager™ Architecture


Mobile Manager™ Components


Mobile Manager™ Positioning

Multi-vendor enterprise-wide wireless LAN management

Eliminates the challenges around:• Initial configuration costs of large numbers of

wireless access points

• Implementing and maintaining wireless LAN security measures

• Wireless asset visibility and monitoring

• On-going attention to updates and maintenance


Wavelink’s Solutions vs. WLSE

WavelinkMulti-vendor enterprise-wide wireless network management

Monitors APs and mobile client devices

Proactively responds to error conditions with rules-based reasoning

Automatically upgrades or rolls back firmware on APs or mobile client devices

Manage the entire wireless network from a central location

Automatic discovery of APs and bridges with automatic configure capability

WLSEWireless network management for Cisco networks

Monitors APs, the attached switch/router and LEAP server

Identifies error conditions, sends alerts

Manage up to 500 APs and bridges from a central location

Provides client association reports

Automatic discovery of APs and bridges with option to automatically configure


Airwave

The AirWave Management Platform is a network management solution specifically designed for a multi vendor wireless networks. The AirWave Management Platform provides a central console from which IT can configure and monitor its entire WLAN infrastructure, across multiple campuses. The Platform can control from 25 to 500 hardware device from manufacturers, including Cisco, ORiNOCO (Agere/Proxim), Symbol, Intel, HP, Compaq, Dell, Avaya, and 3e Technologies International.


Other Management Options

SNMP management devices• HP OpenView, Tivoli and NetView

• MIB-II enabled WLAN devices


Summary

• Demonstrate proficiency using TCP/IP utilities

• Identify the common tools used to troubleshoot a wireless network

• Identify single point failures on a WLAN.

• Configure SNMP and Syslog logging

• Identify basic facts about CiscoWorks WLSE and ACAT tool.

• Identify facts about Wavelink Mobile Manager™ and Airwave.

626262© 2003, Cisco Systems, Inc. All rights reserved.

Documents

© 2003, Cisco Systems, Inc. All rights reserved. FWL 1.0—11-1 111 © 2003, Cisco Systems, Inc. All rights reserved