Troubleshooting, Error Status screen | Nortel Networks NN43001-504

119

Troubleshooting

This chapter contains information about the following topics:

•"Troubleshooting the WLAN IP Telephony Manager 2245" (page 119)

•"Troubleshooting the WLAN Application Gateway 2246" (page 122)

•"Troubleshooting the handset" (page 122)

•"Dropped calls" (page 124)

•"Troubleshooting coverage issues" (page 144)

•"Before calling Nortel Technical Support" (page 144)

Troubleshooting the WLAN IP Telephony Manager 2245

Use the System Status Menu screen to obtain information about system alarms and network status.

For information about how to connect to the WLAN IP Telephony Manager 2245 and access the System Status Menu screen from the NetLink SVP-II System screen, see "WLAN IP Telephony Manager 2245 conﬁguration"

(page 99).

Options on the System Status Menu screen provide a window into the real-time operation of the system components. Use this data to evaluate system function and to troubleshoot areas that can be experiencing problems.

On the System Status Menu screen, select from the following options:

•Error Status—displays alarm and error message information.

•Network Status—displays information about the Ethernet network to which the WLAN IP Telephony Manager 2245 is connected.

•Software Versions—lists the software versions for the WLAN IP Telephony Manager 2245.

Error Status screen

The Error Status screen displays any alarms that indicate some system malfunction. Some of these alarms are easily remedied. Others require a call to Nortel Technical Support.

Nortel Communication Server 1000

WLAN IP Telephony Installation and Commissioning

NN43001-504 01.02 Standard

Release 5.0 15 June 2007

Copyright © 2004-2007, Nortel Networks

Image 119

Nortel Networks NN43001-504 manual Troubleshooting the Wlan IP Telephony Manager, Error Status screen

Contents

Wlan IP Telephony Installation and Commissioning Page August Revision historyJune May Revision history Contents Planning System information Installation Troubleshooting 119 Release Appendix C Compatible Access Points 223 Index 224 Procedures Copyright 2004-2007, Nortel Networks Other changes Feature descriptionNew in this release Feature programming for the Wlan Handset 6120/6140 Zones for wireless handsetsOpen and use the Admin menu on the handset Admin menu options for the Wlan Handset 6120/6140 New messages are Error Server Unavailable. Restarting Wireless handset status messages New in this release Getting help from the Nortel Web site How to get helpGetting help over the phone from a Nortel Solutions Center Getting help through a Nortel distributor or reseller Subject Overview System migration Applicable systems Online ConventionsResources NTPs Shielded cable Wireless telephone network descriptionDeclaration of conformity Wireless telephone network description Call Server Typical wireless telephone network conﬁguration Wlan Handset 2210/2211/2212 and Wlan Handset 6120/6140 Dhcp ServerTftp Server Firewall Components Licenses Wi-Fi MultimediaLanguage Push-to-talk feature Wired Equivalent PrivacyWi-Fi Protected Access Wi-Fi Protected Access2 Loud noise environments Wlan IP Telephony Manager Wlan Application Gateway Access Points Loss of signal Handset switchoverHandset switchover Overview Challenges of integrating voice applications Planning Rate scaling and variable capacity High overhead Quality of Service Power adjustments and variable capacity Dhcp server planning Dhcp server planning Sample Dhcp reservation showing assigned parameters Tftp Server planning Tftp Server planning Recommendation Access point planningSyslog Server planning Site survey Site Survey modeAccess point requirement considerations for b radio Frequencies used by b radio Physical site study Effective site surveyNetwork usage Mobility requirements Walk-through and survey RF transmission testingExample of AP placement Sample AP placement diagram for b radio Solving coverage issuesSolving overlap issues Radio assignment Network planningNetwork recommendation Network management Sample Access Control List Assessment through a Wlan site survey Assessment using NetIQ Vivinet Assessor Planning Enms 10.5 Ipsm overview Enms 10.5 Ipsm convergence view Network management Communication Server 1000 Telephony Manager NetiQ Vivinet Diagnostics exampleZones Other network design considerations Access Point interference Ssid options and limitations Example Single telephony Vlan implementation Layer 3 implementation Capacities Installation requirementsWlan IP Telephony Manager 2245 planning Group capacities Wlan IP Telephony Manager 2245 groupsMaster Wlan IP Telephony Manager Total Handsets 2245 Calls Erlangs 10% use 15% use 20% use Wireless Managers Telephony Managers 2245 2245-10 2245-20 Not applicable Wlan IP Telephony Manager 2245 planning Roaming and handover Access points on the same subnetMobility across different subnets when using Dhcp Gateway and timing function Multicast Placement guidelines for the Wlan IP Telephony Manager Maximum delay, jitter and packet loss Jitter removal for packets going to the AP Example 1 End-to-end delay and packet loss for a LAN Example 2 End-to-end delay and packet loss for a WAN Planning Step Action End Wlan Application Gateway 2246 planning IP address planning Wlan IP Telephony Manager 2245 planning worksheet Planning worksheetsIP addressing with Dhcp Required only if using the optional Wlan Application Gateway Zones System informationBandwidth management Current registration status of wireless handsets Call blocking Wireless telephone type designationCodecs Alias IP address RLR and SLR Jitter buffer Branch Ofﬁce Gain adjustmentProgrammable rings and tones Virtual Ofﬁce Survivable Remote Gateway End-to-end QoS External Applications Server Network conﬁgurations NAT Traversal feature VPN design over a Layer 2 network VPN design over a Layer 3 network Not recommended VoWLAN design Dhcp Server location in a NAT environment Wlan IP Telephony Manager 2245 in a NAT environment Network conﬁguration 3 with Full Dhcp Server Tftp Server location in a NAT environmentWlan Application Gateway 2246 in a NAT environment CS 1000 not supported Feature Feature full name Description CS 1000 features XAS IP Phone 2004 features KEM Supported on the Wlan Feature Handsets Description Required materials Installation About the front panel Preinstallation checklistWlan IP Telephony Manager 2245 installation tasks Supplied equipment Wlan IP Telephony Manager 2245 front panel Wall-mount Rack-mount Procedure Wall-mounting the Wlan IP Telephony ManagerProcedure Rack-mounting the Wlan IP Telephony Manager LAN connection Wlan Application Gateway 2246 installationPower connection Procedure Connecting the power Installation Functional description Wlan IP Telephony Manager 2245 conﬁgurationIntroduction Wlan IP Telephony Manager 2245 conﬁguration Serial port connection Conﬁguration tasksConnect to the Wlan IP Telephony Manager Telnet connection Conﬁgure the network Wlan IP Telephony Manager 2245 conﬁguration Save the conﬁguration Procedure Saving the conﬁguration Changing the master IP address Conﬁgure the Wlan IP Telephony Manager Conﬁgure the Wlan IP Telephony Manager 2245 Procedure Changing the password Change the password Procedure Changing a forgotten password Wlan IP Telephony Manager 2245 conﬁguration Checking in to the Gateway Administration and maintenanceAdding a Wlan IP Telephony Manager 2245 to the system Replacing the failed Wlan IP Telephony Manager Procedure Replacing a Wlan IP Telephony ManagerReplacing a Wlan IP Telephony Manager Failed master Wlan IP Telephony Manager View software version Wireless handset scenariosRemoving a Wlan IP Telephony Manager 2245 from the system Changing the master Wlan IP Telephony Manager For the Wlan IP Telephony Manager Software updatesFor a wireless handset Procedure Viewing the software version Lock the system Update software on the Wlan IP Telephony ManagerUpdate software on the Wlan Application Gateway Update software on a wireless handset Step Action Select Find Products A-Z Normal download messages Message Description Wireless handset download messagesDisplays Normal download messages Failure and recovery messages Message Description Download failure or recovery messages Error Status screen TroubleshootingTroubleshooting the Wlan IP Telephony Manager Network Status screen Software Version Numbers screen Context Troubleshooting the Wlan Application GatewayTroubleshooting the handset Speed or duplex mismatch Conﬁguration problems Access Point problems Far-end echo Dropped callsDuplex mismatch No ring Wireless handset status messages Message Description Action Message Description Action Message Description Action Low Battery and a beep Battery Low messagePower Off/End Call. Place Press Power On/Start Call NN43001-504 01.02 Standard Release 5.0 15 June Do not Power OFF Message Description Action Message Description Action Message Description Action Message Description Action LAN Message Description Action Message Description Action See Updating software LD 32 IDU command Using Call Server overlay commands LD 117 Stip command LD 32 Stat commandLD 117 Inventory command DsetShow command TPS CLI commands IsetCount and isetGet E2dsetShow commandIsetReset and isetResetAll UsiLibTrace UmsKernalJobsShow and umsUpgradeAllUmsPolicyShow and umsUpdatePolicy IsetShow, isetShowByTN, and isetShowByIP Determining alias IP addresses Troubleshooting coverage issuesBefore calling Nortel Technical Support Before calling Nortel Technical Support Troubleshooting NTTQ65AB NTTQ65BA Appendix a Wlan Application Gateway Wlan Application Gateway 2246 connections System overviewModel number Number of users Front panel Ethernet switch connections NTTQ65xx Third-party applications Nurse-call systems InstallationInstalling with a new system Installing in an existing system Conﬁguring the Wlan Application Gateway 2246 IP address Procedure Installing the Wlan Application Gateway 04830130 Conﬁguration Enter Administration console navigationTask summary list Conﬁguring network parameters Conﬁguring the OAI Box Procedure Conﬁguring the network Connecting to the LAN RS-232 cable connection Connecting to the Application ServerConnect to the Application Server through an RS-232 port Connect to Application Server through a modem Pins on the connector FunctionConnect to the Application Server through the LAN Continuing conﬁguration through Telnet Connecting through Telnet Conﬁguring the Telephone Line Procedure Conﬁguring a telephone line Searching for a handset Procedure Deleting a handsetProcedure Searching for a handset Deleting a handset Procedure Programming a feature Feature programming System status Setting or changing a passwordProcedure Setting or changing a password Network status Procedure Viewing system status Software versions Viewing the network status Certiﬁcation testing Software ﬁles File name Description Software updatesSoftware Procedure Transferring the software using FTP Obtain software using FTP Procedure Loading software updates Tftp software updates Systems Dialing Port MAC Address User Name Ext IP Address if static Planning Worksheet for HandsetsHandset Planning Worksheet Free the serial port for administrative purposes Site data-gathering tables Appendix B Troubleshooting Wlan IP Telephony installations System Information table System History table Site data-gathering tables Attachments Other Required table Product-speciﬁc conﬁgurationTerminal proxy server Wlan IP Telephony Manager Wlan speciﬁc conﬁgurationHandsets Cisco Aironet 1200 Series Nortel switchesNortel Wlan Security Switch Cisco access points and switches Parameter Setting Importance Wlan Security Switch 2270 notes 1230 connected with 2950 and 2245 connected with 2950 Speciﬁc Cisco conﬁguration examples Connected the APs Connected to 1230 connected with 3560 and 2245 connected with 6509 AP1230 Connected to APs General Wlan conﬁguration Dhcp options Dhcp server options Dhcp options Appendix B Troubleshooting Wlan IP Telephony installations Dhcp support for handsets that emulate the IP Phone Appendix B Troubleshooting Wlan IP Telephony installations Dhcp options Appendix B Troubleshooting Wlan IP Telephony installations Copyright 2004-2007, Nortel Networks Appendix B Troubleshooting Wlan IP Telephony installations RF basics and AP conﬁguration Appendix B Troubleshooting Wlan IP Telephony installations Copyright 2004-2007, Nortel Networks Diagnosis ﬂows TroubleshootingCall or signalling-related issues Typical call-related issues Issue Type Check for Typical voice quality issues Issue Type Check for Voice-quality issues Handset error messages Short Error code Description Action Handset error messages Timing Wlan IP Telephony Manager Handset to To the AP Short Error code Description ActionTiming information Run Site Survey for the Wlan Handset 2210/2211/2212 Diagnostic Tools Ssid Ab7bc8 -28 100 2ae578 -48 200 2ae596 -56 Any Detl Alpha Diagnostics Mode SAWA2 Diagnostics Screen 4 displays the following information Syslog message contents Contents Syslog Mode Syslog message Contents Audio stats AStat Radio stats NStat AP TOO Busy Syslog reason codes Reason code Meaning Number Reason code Meaning Number Action Timeout Questions Data checklistData capture Dhcp scope Site-data required for the capture analysis Syslog capture conﬁguration Network diagram Procedure Using the CLI to capture a Signaling Server log Signaling Server log capture General data capture Procedure Obtaining the wired and wireless capturesPage Click Get Assert Data Network speech levels References Source and type Title Revision Comments Reference documentsNetwork speech levels Ieee Source and type Title Revision Comments Source and type Title Revision Comments Compatibility Appendix C Compatible Access Points Index Symbols/Numerics Index Wlan Page Wlan IP Telephony Installation and Commissioning