Capacity planning | Nortel Networks NN43001-121 instruction

46Planning and engineering

address is used by clients as a single point of connection to the pool. This address is listed in DNS and has an FQDN. Internal OCS clients require the DNS server to establish a connection with the Enterprise Edition Pool.

Figure 15

Incoming Load Balancer

Nortel Application Switch

Nortel recommends that you use the Nortel Application Switch (NAS) for Load Balancing.

Capacity planning

This section provides the capacity requirements for the various components.

Nortel Communication Server 1000

Nortel Converged Ofﬁce Fundamentals — Microsoft Ofﬁce Communications Server 2007

NN43001-121 01.03 Standard

Release 5.0 30 April 2008

Copyright © 2005–2008, Nortel Networks

Image 46

Nortel Networks NN43001-121 manual Capacity planning, Nortel Application Switch, Incoming Load Balancer

Contents

NN43001-121 Legal Notice Contents NN43001-121 01.03 Standard Release April Installation 101 Maintenance 209 Appendix a Call Flow and protocol details 237 Copyright 2005-2008, Nortel Networks Ofﬁce Communications Server 2007 features Other changes January Revision HistoryDecember How to get help Getting help from the Nortel web site Getting help through a Nortel distributor or reseller Prerequisites Introduction navigation Introduction Component overview navigation Converged Ofﬁce Converged Ofﬁce component overview Enterprise Voice Enterprise Voice components OCS OCS 2007 Voice components Media Gateways Core routing server components Mediation Server CS 1000 and OCS 2007 logical network elements Signaling and Media path between the OC client and CS Remote Call Control with SIP CTI TR/87 Example of RCC with SIP CTI TR/87 Telephony Gateway and Services Remote Call Control Converged Ofﬁce component overview Personal Call Assistant Dual forking example Personal Call Assistant PCA service Access Edge Server OCS 2007 snap-in Multimedia Convergence Manager CDR data collection SIP CTI TR/87 Protocol Call Appearance pop-up window IP diagram page 31 depicts the IP protocol information SIP diagram IP diagram Hardware Load Balancer Ofﬁce Communicator Documentation References Documentation References Technical document Content Primary audience Planning and engineering navigation Planning process Network conﬁguration Small network Medium network Small network conﬁguration Large network Medium network conﬁguration Multiple customer network Large network conﬁguration Multiple customer network Multiple location network Multiple location network Load balancer navigation Load Balancer planningLoad Balancer prerequisites Load Balancer requirements TCP Redundancy with Load Balancers High-scale and high availability conﬁguration Capacity planning Nortel Application SwitchIncoming Load Balancer OC 2007 client requirements SIP CTI TR/87 services requirementsCapacity planning navigation Load Balancer capacity requirements Planning and engineering Mediation server requirements Signaling Server requirementsSIP CTI TR/87 example OCS Proxy and MCM capacity requirements Call Server requirementsMaximum call rate Usage General requirements General requirements navigation Server topology Operating System Requirements Mediation Server hardware requirements Hardware Hardware RequirementsOCS Proxy server hardware requirements Back end database for a large Enterprise pool Virtual ServerBack end database for a small to medium Enterprise pool Ofﬁce Communicator client requirements Storage SIP access portTrunks Inputs Description Trafﬁc ﬁgures Traffic CCS Traffic Erlang Number of ports Traffic CCS Traffic Erlang Number of ports Basic Client Conﬁguration Port use Signaling and media encryption Security Signaling security Dial Plan considerations Signaling security with TLSComputer SIP Calls Phone RCC or TR/87 Calls Dialstrings Signaling and media pathsNumber formats supported by Ofﬁce Communicator International Format Numbers North American format Outside North America format Within North America Outside North America International format numbers for SIP Gateway and SIP CTI Telephony Gateway and Services planningTelephony Gateway and Services navigation Systems, platforms, and applications Redundancy CapacitySIP routing Feature Interactions SIP routing Computer call Planning and engineering Telephony Gateway and Services planning Planning and engineering Remote Call Control with SIP CTI Simple network diagram Supported systems, platforms, and applications Other systems, call servers Gateways Nortel applications CDR Third party applications Competitors Campus redundancy Single node RedundancyGeographic redundancy SIPCTIStop all command Command Description Branch Ofﬁce redundancy MG 1000B/SRG Feature Interactions of RCC Feature Operation Description Call Forward state changes Feature Operation Description Client considerations LCS 2005 and OCS 2007 coexistenceConverged Ofﬁce functionality LCS 2005 and OCS 2007 coexistence MCM 2.0 to MCM Default conﬁguration parameters Parameter Default valueMigration planning from LCS 2005 to OCS Load balancer considerations Prerequisites Determine your deployment options User experience Phase DescriptionMigration process Phase Description User experience Description of Migration Phases Functionality Migrating users from LCS to OCS Step Action Uniﬁed Messaging navigation OCS 2007 users using CallPilotUniﬁed Messaging End For Converged Ofﬁce users using a Nortel telephone CallPilot conﬁgurations For Converged Ofﬁce users not using a Nortel telephone OCS 2007 users using UM 2007-integratedUniﬁed Messaging 2007 integrated Option SA DN For Converged Ofﬁce users using a Nortel telephone OCS 2007 users using UM 2007-non-integrated Uniﬁed Messaging 2007 non-integrated SA DN PCA Cfna Signaling with integrated Voice Mail Signaling with non-integrated Voice Mail Signaling integrated Signaling non-integrated Planning and engineering Installation Installation navigation Installation and conﬁguration ﬂow OCS 2007 installation preparation and deployment OCS 2007 installation preparation and deployment ﬂow chart Installing the CS 1000 system CS 1000 and Signaling Server installationOCS 2007 component installation Installing the Signaling Server Prerequisite OCS 2007 information Active Directory OCS Proxy server installation Ofﬁce Communications Server OCS 2007 Enterprise Pool Installing the Load Balancer Load Balancer installationInstalling the OCS Proxy server Select Network Connections Installing MCM MCM installationPrerequisite MCM information Select Create a new account Conﬁguration Conﬁguration ﬂow chart Active Directory conﬁguration Active Directory Microsoft Ldap server Deﬁning users User properties Click the Conﬁgure button 116 Conﬁguration Enable Remote call control Enable Enterprise Voice and PBX integration Enable both RCC and Enterprise Voice Ofﬁce Communications Server conﬁguration Load Balancer conﬁguration Voice Properties conﬁguration Enabling dual forking-by user Enabling dual forking-globallyStep Action Click Forest and then Properties Host Authorization and Routing conﬁguration OCS conﬁguration procedures Conﬁguration of Static RoutesApplying policy Opening Ofﬁce Communications Server For an example, see Routing tab Ofﬁce Communications Server Front Ends Routing tab Conﬁguring host authorization for the OCS Proxy Opening the Computer Management console Ofﬁce Communications Server Management Console Click the Host Authorization tab Edit Authorized Host Host Authorization OCS Front End OCS Mediation OCS Application Servers Pool CTI TLS SIP CTI TLS OCS Mediation Server conﬁguration Conﬁguring a Mediation Server MCM 3.0 conﬁguration Click the Next Hop Connections tab MCM architecture Example 2 Incoming calls to Ofﬁce Communicator Example 1 Outgoing calls from Ofﬁce CommunicatorMCM architecture MCM Direct conﬁguration MCM management console 138 Conﬁguration MCM menu options MCM conﬁguration window Network topology ﬁelds Configuration field Description SPS Mediation routing table Following Element Manager SIP URI MAP Element Manager SIP URI MAP Get SIP URI Enabling replication to the Global Catalog Get phone Replicating attributes to the Global Catalog Network dial plan Configuration field Description MCM 3.0 conﬁguration Telephony Gateway and Services conﬁguration Enable phone integration on the client Call Server conﬁguration Conﬁguring the Codec Loss Plan conﬁguration Codec conﬁguration Dialing Plan conﬁguration to route to MCM Dialing plan to route to MCM Conﬁguring the Personal Call Assistant Marp Screen output Prompt Response Description 156 Conﬁguration Caller ID table conﬁguration Following is a portion of the screen output Home LOC and Home NPA conﬁguration DNS Server conﬁguration SIP Trunk conﬁguration DNS conﬁguration SIP Gateway conﬁguration window STRI/STRO WNK WNK Domain naming Sigo ESN5 Conﬁguring the SIP Trunk Domain name SIP Trunk Domain name Element Manager Signaling Server Properties URI Mapping SIP URI Map SIP Gateway Clid Parameters conﬁguration SIP GW Clid Parameters Parameter Subscriber / Number of Digits to strip Parameter Country CodeParameter Area Code Parameter Subscriber / Preﬁx to insert Ofﬁce Communications Server Service Domain NRS conﬁguration CDR conﬁguration Remote Call Control conﬁguration RCC and PBX integration on OC client Step Action Go to the Ofﬁce Communicator menu CS 1000 conﬁguration Enable integration with your phone systemConﬁguring the AML LD 17 Conﬁgure AML Link Prompt Response Description Type Adan Conﬁguring a station Conﬁguring the SIP CTI TR/87 ISM limitLD 22 ISM Limit printout Considering Madn Multiple Appearance DN LD 11-Twinning a station Prompt Response Description Signaling Server conﬁguration Node parameter conﬁguration TR/87 Node conﬁguration SIP Gateway parameter conﬁguration SIP Gateway conﬁguration 180 Conﬁguration SIP CTI Services conﬁguration settings SIP CTI Services settings Parameter Service EnabledParameter Customer Number Parameter Maximum Associations Per DN Parameter International Calls As National SIP CTI Dial Plan preﬁxes SIP CTI Clid conﬁguration parameters Parameter Dialing Plan Scenario 2 SIP CTI Dial Plan = UDP Scenario 1 SIP STI Dial Plan = CDPParameter Calling Device URI Format Parameter Subscriber/Preﬁx to insert Parameter Home Location CodeParameter Subscriber/Number of Digits to strip Parameter National/Number of Digits to strip Non-North American SIP CTI conﬁguration example North American Clid manipulation Conﬁguring the SIP URI Map Non-North American Clid Manipulation Conﬁguring CDR SIP Info message Normalizing phone numbers Normalizing Ofﬂine Recommended Normalizing using the Address Book Service Creating Normalization rules Example Adding a new normalization rule Step Action Adding a new Normalization ruleResult Normalization rule example for UDP dial plan Company phone number normalization rules for CDP Refresh Address Book on the server Refresh Address Book on the client Redundancy conﬁguration OCS 2007 users using UM 2007 in integrated modeSIP Routing and Redundancy conﬁguration Option 1 adding user Alias as Exchange UM Conﬁguring a basic mailbox for the UM user Adding user Alias as Exchange UM User Properties window for Exchange UM UM Address Dial plan window Uniﬁed Messaging Properties window Adding Exchange UM UM Address 206 Conﬁguration End 208 Conﬁguration MCM IntroductionCommunication Server Tools Signaling Server OAM Level CLI Commands Patches and upgradesRemote Call Control TTY Operational Measurements for SIP CTI SIP CTI Signaling Server Expert Level CLI Commands Polling message with IE type Checking Telephony Gateway SIP Gateway conﬁguration Checking Telephony Gateway conﬁguration Checking Remote Call Control SIP CTI conﬁguration Lack of memory on Signaling ServerProblem Checking Remote Call Control conﬁguration Solution SIP CTI services does not come upSymptom SIP Dialog not established Solution 2 Conﬁrm Fqdn and the IP address are correct Solution 1 Check conﬁguration parameters in ADSIP CTI service is down Reconﬁgure SIP CTI service Screen output example for SIP CTI status Solution 1 Check the Global Catalog content manually MCM not synchronizing new users in AD Cache modeLD 48, check the Elan status on the Call Server Checking the Global Catalog content manually Solution 2 Access permissions for the AD object properties Accessing permissions for the AD object properties Select User objects in the ﬁeld Apply onto OC client not registered Enable Replicate this attribute to the Global CatalogPop-up not displayed Solutions Delay for a SIP Gateway callCall Forward is cancelled by Ofﬁce Communicator Two pop-ups are displayed Capturing traces and logs Ofﬁce Communicator disconnecting from the networkCommunication Server 1000 traces AML traces on the Call Server SIP CTI only SIP CTI traces on the Signaling ServerSIP CTI trace in PDT Prompt Response Description SIP Gateway traces on the Signaling Server SIP Gateway trace in PDT Prompt Response Description MCM logs Example of screen output for SIP Gateway trace SIP and Debug Activating MCM loggingMCM logs MCM log ﬁle output MCM Event log OCS logs Resetting MCM debug traceResetting MCM debug trace Step Action Event Viewer window Enabling OC logs Step Action Activating OCS logsOC logs OCS debugging tool OC client start-up debugging Turn on Logging and Windows Event Logging No PBX connection for OC client Case checklistsSignaling Server information Check Call Server information Check Check OCS conﬁguration information NRS conﬁguration information CheckMCM conﬁguration information Active Directory conﬁguration information Check Tracing information Check Contents Overview Message sequence SIP Info message with ECMA-323 content Telephony Gateway and Services call ﬂowCall ﬂow Inbound call to OC client with SPS, OC client answers Inbound call to OC client with SRS, phone answers Direct inbound call to OC client, OC client answers Call ﬂow Call Forward by OC client Remote Call Control Call Flow Call Forward call ﬂow by OC client Supported features Remote Call Control Session Establishment through SRS Supported features Supported by Appendix B Conﬁguration Examples Standard Edition Setting up the lab Overview of lab setup Collecting required data Checking the Call Server conﬁguration Conﬁguring the Call ServerRequired Information Record your information For example Prt LD 22--check for licenses Prompt Response DescriptionSlt LD 22-MSCONV package Prompt Response Description LD 20-SIP Trunk conﬁguration Prompt Response Description LD 21-SIP Route conﬁguration Prompt Response Description Type RDB Cust Rout DES SIP Tktp TIE Npidtblnum LD 11-TN conﬁguration Prompt Response Description Tnb 152 0 0 LD 21-Conﬁrm PCA is activated Prompt Response Description LD 21-Conﬁrm PCA for SIP Gateway Prompt Response Description Screen output shown here may differ depending on the setup Iapg Aacs no Itna no Dgrp Mlwulang 0 Mlng ENG Dndr LD 87-Conﬁgure DSC for PCA Prompt Response Description Flen DSP LSC Rrpa no RLI Ccba no NPA NXX Signaling Server checklist Checking the conﬁguration of the Signaling Server DNS conﬁguration on the Signaling Server Fqdn of the OCS 2007 Front End server SIP GW Settings SIP URI Map SIP CTI Services Conﬁguring Network Routing Service NRSChecking NRS conﬁguration Step Action Signaling Server and MCM Endpoints status on NRS Routing Entry Checking the settings of Active Directory user conﬁguration Active Directory user conﬁguration General user properties Communications properties Checking the MCM installation and conﬁguration User Options MCM Application MCM Gateway Endpoint conﬁguration Overview of general lab set-up Enterprise EditionMCM Conﬁguration screen OCS Enterprise Edition General Overview Collecting Data for Enterprise EditionMicrosoft Active Directory OCS Required information Record your For example Information OCS Management Console OCS Management Console Identifying the active default applications Step Action OCS Default Applications RunningDetermining the exact Fqdn of the pool General tab settings Default applications Security/Certiﬁcates General settingsChecking the conﬁguration of Certiﬁcates Choose the Host Authorization tab Host AuthorizationChecking the conﬁguration of Host Authorization Front End server Certiﬁcate Routing Host Authorization for Front End serverChecking that Routing is correctly conﬁgured Routing for Enterprise Pool Checking that DNS is correctly conﬁgured Click on the Service Location SRV tabConﬁguring DNS Select sipinternaltls Sipinternaltls SRV records Active Directory conﬁguration Host a record for the Pool Installing and conﬁguring MCM User Advanced Settings Checking that MCM is correctly installed and conﬁgured RTC Server Local Group RTC Server Application group MCM conﬁguration Conﬁguring NRS Checking that the Signaling Server is correctly conﬁguredChecking that NRS is correctly conﬁgured MCM endpoints Normalizing Phone Numbers Routing Entries for Endpoints Appendix B Conﬁguration Examples Appendix C Abbreviations CDP IPSec OCS Pstn VoIP Xpec Appendix C Abbreviations Page Nortel Communication Server