Diagnostics Mode | Nortel Networks NN43001-504 guide

204Appendix B Troubleshooting WLAN IP Telephony installations

ATTENTION

Numbers racing across the handset display indicate that AP information is being obtained. A Waiting message indicates that the system is not conﬁgured properly and the handset cannot ﬁnd any APs.

Diagnostics Mode

Diagnostics Mode evaluates the overall quality of the link between the handsets, AP, and the infrastructure equipment (call server, WLAN IP Telephony Manager 2245, and gateways). Diagnostics Mode can be used when the handset is active.

When Diagnostics Mode is activated in the Admin menu, the handset enters the diagnostic state. The handset can display diagnostics any time it is on a call.

Pressing the Menu key displays a number of diagnostic counters. Five screens of counters can be displayed by pressing the Menu key to scroll through the following screens:

•Screen 1—displays counters for missed receive packets, missed transmit packets, receive retry count, and transmit retry count.

•Screen 2—displays jitter delta, last successful transmit data rate, and gateway type.

•Screen 3—displays a list of APs and some of their details.

•Screen 4—displays association and reassociation counts.

•Screen 5—displays security error count and sequence number for last security error.

After all the counters are displayed, the screen returns to the normal off-hook display.

The screen number appears on the top line of the screen.

Diagnostics Screen 1 displays the following information:

MissedRcvCnt nnnnn

MissedXmtCnt nnnnn

RxRetryCount nnnnn

TxRetryCount nnnnn

where

MissedRcvCnt is the missed receive packet count since power up.

MissedXmtCnt is the missed transmit packet count since power up.

RxRetryCount is the receive retry count since power up.

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 204

Nortel Networks NN43001-504 manual Diagnostics Mode

Contents

Wlan IP Telephony Installation and Commissioning Page Revision history JuneMay August Revision history Contents Planning System information Installation Troubleshooting 119 Release Appendix C Compatible Access Points 223 Index 224 Procedures Copyright 2004-2007, Nortel Networks Feature description New in this releaseOther changes Zones for wireless handsets Open and use the Admin menu on the handsetAdmin menu options for the Wlan Handset 6120/6140 Feature programming for the Wlan Handset 6120/6140 Wireless handset status messages New messages are Error Server Unavailable. Restarting New in this release How to get help Getting help over the phone from a Nortel Solutions CenterGetting help from the Nortel Web site Getting help through a Nortel distributor or reseller Overview Subject Applicable systems System migration Conventions ResourcesNTPs Online Wireless telephone network description Declaration of conformityShielded cable Wireless telephone network description Typical wireless telephone network conﬁguration Call Server Dhcp Server Tftp ServerFirewall Wlan Handset 2210/2211/2212 and Wlan Handset 6120/6140 Components Wi-Fi Multimedia LanguageLicenses Wired Equivalent Privacy Wi-Fi Protected AccessWi-Fi Protected Access2 Push-to-talk feature Wlan IP Telephony Manager Loud noise environments Access Points Wlan Application Gateway Handset switchover Handset switchoverLoss of signal Overview Planning Challenges of integrating voice applications High overhead Rate scaling and variable capacity Power adjustments and variable capacity Quality of Service Dhcp server planning Dhcp server planning Tftp Server planning Sample Dhcp reservation showing assigned parameters Tftp Server planning Access point planning Syslog Server planningRecommendation Site Survey mode Access point requirement considerations for b radioSite survey Frequencies used by b radio Effective site survey Network usageMobility requirements Physical site study RF transmission testing Example of AP placementWalk-through and survey Solving coverage issues Solving overlap issuesSample AP placement diagram for b radio Network planning Network recommendationRadio assignment Sample Access Control List Network management 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 NetiQ Vivinet Diagnostics example ZonesCommunication Server 1000 Telephony Manager Other network design considerations Access Point interference Example Ssid options and limitations Layer 3 implementation Single telephony Vlan implementation Installation requirements Wlan IP Telephony Manager 2245 planningCapacities Wlan IP Telephony Manager 2245 groups Master Wlan IP Telephony ManagerGroup capacities Wireless Managers Total Handsets 2245 Calls Erlangs 10% use 15% use 20% use Telephony Managers 2245 2245-10 2245-20 Not applicable Wlan IP Telephony Manager 2245 planning Access points on the same subnet Mobility across different subnets when using DhcpGateway and timing function Roaming and handover Placement guidelines for the Wlan IP Telephony Manager Multicast 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 Planning worksheets IP addressing with DhcpWlan IP Telephony Manager 2245 planning worksheet Required only if using the optional Wlan Application Gateway System information Bandwidth managementZones Current registration status of wireless handsets Wireless telephone type designation CodecsAlias IP address Call blocking Jitter buffer RLR and SLR Gain adjustment Programmable rings and tonesVirtual Ofﬁce Branch Ofﬁce Survivable Remote Gateway External Applications Server End-to-end QoS NAT Traversal feature Network conﬁgurations VPN design over a Layer 2 network VPN design over a Layer 3 network Not recommended VoWLAN design Wlan IP Telephony Manager 2245 in a NAT environment Dhcp Server location in a NAT environment Tftp Server location in a NAT environment Wlan Application Gateway 2246 in a NAT environmentNetwork conﬁguration 3 with Full Dhcp Server CS 1000 features CS 1000 not supported Feature Feature full name Description IP Phone 2004 features XAS Supported on the Wlan Feature Handsets Description KEM Installation Required materials Preinstallation checklist Wlan IP Telephony Manager 2245 installation tasksSupplied equipment About the front panel Wall-mount Wlan IP Telephony Manager 2245 front panel Procedure Wall-mounting the Wlan IP Telephony Manager Procedure Rack-mounting the Wlan IP Telephony ManagerRack-mount Wlan Application Gateway 2246 installation Power connectionProcedure Connecting the power LAN connection Installation Wlan IP Telephony Manager 2245 conﬁguration IntroductionFunctional description Wlan IP Telephony Manager 2245 conﬁguration Conﬁguration tasks Connect to the Wlan IP Telephony ManagerSerial port connection Telnet connection Conﬁgure the network Wlan IP Telephony Manager 2245 conﬁguration Procedure Saving the conﬁguration Save the conﬁguration Conﬁgure the Wlan IP Telephony Manager Changing the master IP address Conﬁgure the Wlan IP Telephony Manager 2245 Change the password Procedure Changing the password Procedure Changing a forgotten password Wlan IP Telephony Manager 2245 conﬁguration Administration and maintenance Adding a Wlan IP Telephony Manager 2245 to the systemChecking in to the Gateway Procedure Replacing a Wlan IP Telephony Manager Replacing a Wlan IP Telephony ManagerFailed master Wlan IP Telephony Manager Replacing the failed Wlan IP Telephony Manager Wireless handset scenarios Removing a Wlan IP Telephony Manager 2245 from the systemChanging the master Wlan IP Telephony Manager View software version Software updates For a wireless handsetProcedure Viewing the software version For the Wlan IP Telephony Manager Update software on the Wlan IP Telephony Manager Update software on the Wlan Application GatewayUpdate software on a wireless handset Lock the system Step Action Select Find Products A-Z Wireless handset download messages DisplaysNormal download messages Normal download messages Message Description Download failure or recovery messages Failure and recovery messages Message Description Troubleshooting Troubleshooting the Wlan IP Telephony ManagerError Status screen Network Status screen Software Version Numbers screen Troubleshooting the Wlan Application Gateway Troubleshooting the handsetSpeed or duplex mismatch Context Access Point problems Conﬁguration problems Dropped calls Duplex mismatchNo ring Far-end echo Wireless handset status messages Message Description Action Message Description Action Message Description Action Battery Low message Power Off/End Call. PlacePress Power On/Start Call Low Battery and a beep 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 Using Call Server overlay commands LD 32 IDU command LD 32 Stat command LD 117 Inventory commandLD 117 Stip command TPS CLI commands DsetShow command E2dsetShow command IsetReset and isetResetAllIsetCount and isetGet UmsKernalJobsShow and umsUpgradeAll UmsPolicyShow and umsUpdatePolicyIsetShow, isetShowByTN, and isetShowByIP UsiLibTrace Troubleshooting coverage issues Before calling Nortel Technical SupportDetermining alias IP addresses Before calling Nortel Technical Support Troubleshooting Appendix a Wlan Application Gateway NTTQ65AB NTTQ65BA System overview Model number Number of usersWlan Application Gateway 2246 connections Ethernet switch connections Front panel Third-party applications NTTQ65xx Installation Installing with a new systemInstalling in an existing system Nurse-call systems Procedure Installing the Wlan Application Gateway Conﬁguring the Wlan Application Gateway 2246 IP address Conﬁguration 04830130 Administration console navigation Task summary listEnter Conﬁguring the OAI Box Conﬁguring network parameters Procedure Conﬁguring the network Connecting to the LAN Connecting to the Application Server Connect to the Application Server through an RS-232 portRS-232 cable connection Pins on the connector Function Connect to the Application Server through the LANConnect to Application Server through a modem Connecting through Telnet Continuing conﬁguration through Telnet Procedure Conﬁguring a telephone line Conﬁguring the Telephone Line Procedure Deleting a handset Procedure Searching for a handsetDeleting a handset Searching for a handset Feature programming Procedure Programming a feature Setting or changing a password Procedure Setting or changing a passwordSystem status Procedure Viewing system status Network status Viewing the network status Software versions Certiﬁcation testing Software updates SoftwareSoftware ﬁles File name Description Obtain software using FTP Procedure Transferring the software using FTP Tftp software updates Systems Procedure Loading software updates Planning Worksheet for Handsets Handset Planning WorksheetDialing Port MAC Address User Name Ext IP Address if static Free the serial port for administrative purposes Appendix B Troubleshooting Wlan IP Telephony installations Site data-gathering tables System Information table System History table Site data-gathering tables Product-speciﬁc conﬁguration Terminal proxy serverAttachments Other Required table Wlan speciﬁc conﬁguration HandsetsWlan IP Telephony Manager Nortel switches Nortel Wlan Security SwitchCisco access points and switches Cisco Aironet 1200 Series Parameter Setting Importance Wlan Security Switch 2270 notes Speciﬁc Cisco conﬁguration examples 1230 connected with 2950 and 2245 connected with 2950 1230 connected with 3560 and 2245 connected with 6509 Connected the APs Connected to General Wlan conﬁguration AP1230 Connected to APs Dhcp server options Dhcp 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 Troubleshooting Call or signalling-related issuesTypical call-related issues Issue Type Check for Diagnosis ﬂows Voice-quality issues Typical voice quality issues Issue Type Check for Handset error messages Handset error messages Short Error code Description Action Short Error code Description Action Timing informationTiming Wlan IP Telephony Manager Handset to To the AP Diagnostic Tools Run Site Survey for the Wlan Handset 2210/2211/2212 Ssid Ab7bc8 -28 100 2ae578 -48 200 2ae596 -56 Any Detl Alpha Diagnostics Mode SAWA2 Diagnostics Screen 4 displays the following information Syslog Mode Syslog message contents Contents Syslog message Contents Audio stats AStat Radio stats NStat Syslog reason codes Reason code Meaning Number AP TOO Busy Action Timeout Reason code Meaning Number Data checklist Data captureQuestions Site-data required for the capture analysis Dhcp scope Network diagram Syslog capture conﬁguration Signaling Server log capture Procedure Using the CLI to capture a Signaling Server log Procedure Obtaining the wired and wireless captures General data capturePage Network speech levels Click Get Assert Data Reference documents Network speech levelsReferences Source and type Title Revision Comments Source and type Title Revision Comments Ieee Source and type Title Revision Comments Appendix C Compatible Access Points Compatibility Symbols/Numerics Index Index Wlan Page Wlan IP Telephony Installation and Commissioning