Avaya WLAN 8100 Series Troubleshooting Manual
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Avaya WLAN 8100 Series Troubleshooting Manual

Avaya WLAN 8100 Series Troubleshooting Manual

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Avaya WLAN 8100 Troubleshooting Guide
1.1.0.0
NN47251-700, 02.01
August 2011

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  • Page 1 Avaya WLAN 8100 Troubleshooting Guide 1.1.0.0 NN47251-700, 02.01 August 2011...
  • Page 2 Product provided by Avaya including the selection, arrangement and While reasonable efforts have been made to ensure that the design of the content is owned either by Avaya or its licensors and is information in this document is complete and accurate at the time of protected by copyright and other intellectual property laws including the printing, Avaya assumes no liability for any errors.

  • Page 3: Table Of Contents

    Chapter 8: Troubleshooting Layer 2 and Layer 3 issues................49 Chapter 8: Troubleshooting client-related issues..................50 Chapter 8: Troubleshooting AP-related issues..................51 Chapter 8: Troubleshooting with remote packet capture................53 Chapter 8: Troubleshooting the E911 feature................... 55 Avaya WLAN 8100 Troubleshooting Guide August 2011...
  • Page 4 Avaya WLAN 8100 Troubleshooting Guide August 2011...

  • Page 5: Chapter 1: Introduction

    Chapter 1: Introduction This document: • Describes the diagnostic tools and utilities available for troubleshooting the WLAN 8100 Series products including the Command Line Interface (CLI) and the Wireless Management System (WMS). • Guides you through some common problems to achieve a first tier solution to these situations.
  • Page 6 Introduction Avaya WLAN 8100 Troubleshooting Guide August 2011 Comments? infodev@avaya.com...

  • Page 7: Chapter 2: Troubleshooting Planning

    There are some things you can do to minimize the need for troubleshooting and to plan for doing it as effectively as possible. First, use the WLAN 8100 Series Documentation Roadmap to familiarize yourself with the documentation set, so you know where to get information when you need it.
  • Page 8 Troubleshooting Planning traffic data that you capture during troubleshooting. This should speed the process of isolating network problems. Avaya WLAN 8100 Troubleshooting Guide August 2011 Comments? infodev@avaya.com...

  • Page 9: Chapter 3: Troubleshooting Tools

    These are the available troubleshooting tools and their applications. Port mirroring WLAN 8100 series switches have a port mirroring feature that helps you to monitor and analyze network traffic. The port mirroring feature supports both ingress (incoming traffic) and egress (outgoing traffic) port mirroring.

  • Page 10: System Logs

    TDR test does not affect the gigabit links. System logs You can use the syslog messaging feature of the WLAN 8100 series products to manage event messages. The WLAN 8100 series syslog software communicates with a server software component named syslogd that resides on your management workstation.

  • Page 11: Traffic Monitoring

    This involves collecting, storing, and analyzing flow and application measurements exported from the flow meters in the IP network, and provides access to the analyzed measurement. The collection process is hosted by the flow collector-analyzer devices under the IPFIX architecture. Avaya WLAN 8100 Troubleshooting Guide August 2011...
  • Page 12 Troubleshooting Tools Avaya WLAN 8100 Troubleshooting Guide August 2011 Comments? infodev@avaya.com...

  • Page 13: Chapter 4: Configuring Troubleshooting Features

    17 • Configuring RMON history on page 17 • Deleting RMON history table entries. on page 18 • Configuring RMON statistics on page 18 • Disabling RMON statistics on page 19 Avaya WLAN 8100 Troubleshooting Guide August 2011...
  • Page 14 Use this procedure to display information regarding the configuration of RMON history. Procedure 1. Enter Privileged Executive mode. 2. Enter the show rmon history [<port>] command. Variable Definitions Variable Definition <port> The specified port number for which RMON history settings is displayed. Avaya WLAN 8100 Troubleshooting Guide August 2011 Comments? infodev@avaya.com...

  • Page 15: Viewing Rmon Statistics

    <-2147483648-21474836 second integer specifies the event entry to be triggered after the 47 > [<1-65535>] rising threshold is crossed. If omitted, or if an invalid event entry is referenced, no event is triggered. Avaya WLAN 8100 Troubleshooting Guide August 2011...
  • Page 16 Use the following procedure to configure RMON event log and trap settings. Procedure 1. Enter Global Configuration mode. 2. Enter the rmon event <1-65535> [log] [trap] [description <LINE>] [owner <LINE>] command. Variable Definitions Parameter Description <1-65535> Unique index for the event entry. Avaya WLAN 8100 Troubleshooting Guide August 2011 Comments? infodev@avaya.com...

  • Page 17: Configuring Rmon History

    2. Enter the rmon history <1-65535> <LINE> <1-65535> <1-3600> [owner <LINE>] command to configure the RMON history.. Variable Definitions Parameter Description <1-65535> Unique index for the history entry. <LINE> Specify the port number to be monitored. Avaya WLAN 8100 Troubleshooting Guide August 2011...
  • Page 18 2. Enter the rmon stats <1-65535> <LINE> [owner <LINE>] command to configure RMON statistics. Variable Definitions Parameter Description <1-65535> Unique index for the stats entry. [owner <LINE>] Specify an owner string to identify the stats entry. Avaya WLAN 8100 Troubleshooting Guide August 2011 Comments? infodev@avaya.com...

  • Page 19: Configuring Ipfix Using Cli

    Configuring IPFIX collectors About this task The ip ipfix collector command is used to configure IPFIX collectors. IPFIX collectors are used to collect and analyze data exported from an IPFIX compliant switch. In WLAN Avaya WLAN 8100 Troubleshooting Guide August 2011...
  • Page 20 1. Enter Global Configuration mode. 2. Use the ip ipfix enable command to enable IPFIX on the switch. Configuring unit specific IPFIX About this task Use the following command to configure unit specific IPFIX parameters. Avaya WLAN 8100 Troubleshooting Guide August 2011 Comments? infodev@avaya.com...
  • Page 21 2. Use the ip ipfix enable command to enable IPFIX on the interface. Enabling IPFIX export through ports About this task Use the following procedure to enable the ports exporting data through IPFIX. Avaya WLAN 8100 Troubleshooting Guide August 2011...
  • Page 22 Single or comma-separated list of ports. export-and-flush Export data to a collector before it is deleted. Viewing the IPFIX table About this task Use the following procedure to display IPFIX data collected from the switch. Avaya WLAN 8100 Troubleshooting Guide August 2011 Comments? infodev@avaya.com...
  • Page 23 The order in which the data is sorted. Valid options are ascending and descending. <num_entries> The number of data rows to display. Valid options are: • all • top-10 • top-25 • top-50 • top-100 • top-200 Avaya WLAN 8100 Troubleshooting Guide August 2011...

  • Page 24: Chapter 4: Configuring Diagnostics And Graphing

    About this task Use this procedure to view the statistics for the port on both received and transmitted traffic. Procedure 1. Enter Global Configuration mode. 2. Enter the show port-statistics [port <portlist>] command. Avaya WLAN 8100 Troubleshooting Guide August 2011 Comments? infodev@avaya.com...
  • Page 25 About this task Use this procedure to display the port operational status. Important: If you use a terminal with a width of greater than 80 characters, the output is displayed in a tabular format. Avaya WLAN 8100 Troubleshooting Guide August 2011...
  • Page 26 After a while (15 seconds is the forward delay default value, only if you did not configure another time interval for STP forward delay), if you type show interfaces again, STP Status should be forwarding. Avaya WLAN 8100 Troubleshooting Guide August 2011 Comments? infodev@avaya.com...

  • Page 27: Network Monitoring Configuration Using Cli

    1. Enter Privileged Executive mode. 2. Enter the show interfaces <portlist> config command. 3. Observe the CLI output. Network monitoring configuration using CLI About this task This section describes using CLI to view and configure network monitoring. Avaya WLAN 8100 Troubleshooting Guide August 2011...

  • Page 28: Viewing Cpu Utilization

    Procedure 1. Enter Privileged Executive mode. 2. Enter the show cpu-utilization command. 3. Observe the displayed information. Viewing memory utilization About this task Use this procedure to view the memory utilization Avaya WLAN 8100 Troubleshooting Guide August 2011 Comments? infodev@avaya.com...

  • Page 29: Configuring The System Log

    Use this procedure to displays the configuration, and the current contents, of the system event log. Procedure Enter the show show logging [config] [critical] [serious] [informational] [sort-reverse] command Privileged Executive mode. Variable Definitions Variable Value config Display configuration of event logging. Avaya WLAN 8100 Troubleshooting Guide August 2011...
  • Page 30 Use this procedure to disable the system event log. Procedure Enter the no logging command in global configuration mode. Setting the system log to default About this task Use this procedure to default the system event log configuration. Avaya WLAN 8100 Troubleshooting Guide August 2011 Comments? infodev@avaya.com...
  • Page 31 To define the remote syslog server configuration, you configure a part of the DHCP option 43, configure the dhcpd.conf file using the following syslog options. 1. Edit dhcpd.conf (/root/dhcp.conf). 2. Configure option AVAYA-WC8120_AP syslog IP address as shown in the following example. Configuring syslog ports and code levels (code level 7 for Debug) are optional.

  • Page 32: Configuring Remote Logging

    Clearing the remote server IP address on page 34 • Setting the log severity on page 34 • Resetting the severity level on page 34 • Setting the default remote logging level on page 35 Avaya WLAN 8100 Troubleshooting Guide August 2011 Comments? infodev@avaya.com...
  • Page 33 Use this procedure to set the address of the remote server for the syslog. Procedure 1. Enter Global Configuration mode. 2. Enter the logging remote address <A.B.C.D> command to disable the use of a remote syslog server. Avaya WLAN 8100 Troubleshooting Guide August 2011...
  • Page 34 Specifies the severity level of the log messages to be none} sent to the remote server: • critical • informational • serious • none Resetting the severity level About this task Use this command to remove severity level setting Avaya WLAN 8100 Troubleshooting Guide August 2011 Comments? infodev@avaya.com...

  • Page 35: Configuring Port Mirroring

    Use this procedure to display the existing port-mirroring configuration. Procedure 1. Enter Privileged Executive mode. 2. Enter the show port-mirroring command to display the port-mirroring configuration. Configure port-mirroring About this task Use this procedure to set the port-mirroring configuration Avaya WLAN 8100 Troubleshooting Guide August 2011...
  • Page 36 Many to one port mirroring on ingress and egress traffic. Mirror packets received on port X. Mirror packets transmitted on port X. XrxOrXtx Mirror packets received or transmitted on port X. Avaya WLAN 8100 Troubleshooting Guide August 2011 Comments? infodev@avaya.com...
  • Page 37 2. Enter the no port-mirroring command to disable port-mirroring. Displaying Many-to-Many port-mirroring About this task Use this procedure to display Many-to-Many port-mirroring settings Procedure 1. Enter Privileged Executive mode 2. Enter the show port-mirroring command. 3. Observe the displayed information. Avaya WLAN 8100 Troubleshooting Guide August 2011...
  • Page 38 Mirror packets received on port X. XrxOrXtx Mirror packets received on port X and transmitted on port Y. XrxYtx Mirror packets received on port X and transmitted on port Y. Avaya WLAN 8100 Troubleshooting Guide August 2011 Comments? infodev@avaya.com...
  • Page 39 2. Enter the port-mirroring [<1-4>] mode disable or no port- mirroring [<1-4>] command to disable a specific instance. 3. Enter the no port-mirroring command to disable all instances. Variable Definitions Variable Definition <1-4> The port-mirroring instance. Avaya WLAN 8100 Troubleshooting Guide August 2011...
  • Page 40 Configuring troubleshooting features Avaya WLAN 8100 Troubleshooting Guide August 2011 Comments? infodev@avaya.com...

  • Page 41: Chapter 5: General Diagnostic Tools

    Chapter 5: General diagnostic tools The WLAN 8100 series device has diagnostic features available with the CLI and WMS, a Web interface. You can use these diagnostic tools to help you troubleshoot operational and configuration issues. You can configure and display files, view and monitor port statistics, trace a route, run loopback and ping tests, test the switch fabric, and view the address resolution table.

  • Page 42: Wireless Management System

    VLACPDUs are sent periodically. If PDUs are not received on a particular link, that link is taken down after a configurable timeout period. The destination MAC address is also configurable. Avaya WLAN 8100 Troubleshooting Guide August 2011 Comments? infodev@avaya.com...

  • Page 43: Chapter 6: Initial Troubleshooting

    • The software version that is running on the device. To do this, use the show sys-info or show system verbose commands to display the software version that is running on all cards. Show sys-info command Avaya WLAN 8100 Troubleshooting Guide August 2011...
  • Page 44 Initial Troubleshooting Show system verbose command Avaya WLAN 8100 Troubleshooting Guide August 2011 Comments? infodev@avaya.com...
  • Page 45 • Connectivity information: When connectivity problems occur, get information on at least five working source and destination IP pairs and five IP pairs with connectivity issues. To do this, use these commands: - show running-config Avaya WLAN 8100 Troubleshooting Guide August 2011...
  • Page 46 Initial Troubleshooting - show port-statistics <port> Avaya WLAN 8100 Troubleshooting Guide August 2011 Comments? infodev@avaya.com...

  • Page 47: Chapter 7: Switch Stability

    Checking the frequency of the cores for patterns Procedure 1. Use the show memory-utilization regularly to get a sample of memory usage on the switch over time. 2. Send the logs to Technical Support. Avaya WLAN 8100 Troubleshooting Guide August 2011...

  • Page 48: Investigating Possible Causes

    2. Look for configuration changes prior to the first crash. Checking CPU load Procedure 1. Use the show cpu-utilization command to check the CPU load. 2. Provide the output to Technical Support. Avaya WLAN 8100 Troubleshooting Guide August 2011 Comments? infodev@avaya.com...

  • Page 49: Chapter 8: Troubleshooting Wlan Operations

    12. Press CTRL + R to return to the console menu. 13. Select Command Line Interface from the menu. 14. Type the enable command to enter Privileged mode. 15. Use the command show ip to view the IP address configuration. Avaya WLAN 8100 Troubleshooting Guide August 2011...

  • Page 50: Chapter 8: Troubleshooting Client-Related Issues

    7. Use the command show wireless ap-profile network to view information about the correlation between network and AP profiles. 8. Use the command show wireless network-profile <profile_number> detail to view detailed information about a network profile. Avaya WLAN 8100 Troubleshooting Guide August 2011 Comments? infodev@avaya.com...

  • Page 51: Chapter 8: Troubleshooting Ap-Related Issues

    Chapter 8: Troubleshooting AP-related issues About this task Perform the following procedure to troubleshoot AP-related issues. Avaya WLAN 8100 Troubleshooting Guide August 2011...
  • Page 52 AP that is part of the wireless domain. 10. Use the command show wireless controller status to determine the current status of the wireless controller. This command should indicate the controller is either the Active or Backup MDC. Avaya WLAN 8100 Troubleshooting Guide August 2011 Comments? infodev@avaya.com...

  • Page 53: Chapter 8: Troubleshooting With Remote Packet Capture

    Traffic is captured only from/to specific wireless client MAC address. To exclude this filter set the value to empty string. This setting is ignored in promiscuous mode. This filter is not applicable to beacons. Avaya WLAN 8100 Troubleshooting Guide August 2011...
  • Page 54 MDC. In this case, the status information of all managed AP(s) that have an ongoing capture can be seen on the new A-MDC. When the P-WC(s) select a new A-MDC, they must update information of their respective captures with the new A-MDC. Avaya WLAN 8100 Troubleshooting Guide August 2011 Comments? infodev@avaya.com...

  • Page 55: Chapter 8: Troubleshooting The E911 Feature

    <appender-ref ref="LogFileAppender"/> <!--<appender-ref ref="LogFileAppender" /> <!--Zero or more elements allowed. Allows the logger to refere nce appenders by name.--> </root> <!--Appenders may only be defined as child elements f the <log4net> Avaya WLAN 8100 Troubleshooting Guide August 2011...
  • Page 56 %m - will show message to display Layouts-and-Patterns.aspx --> </layout> <appender> <!-- <appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender"> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%-5p %d{yyyy-MM-dd hh:mm:ss} - %m%n /> </layout> </appender> --> </log4net> Avaya WLAN 8100 Troubleshooting Guide August 2011 Comments? infodev@avaya.com...

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