321 Studios (ITG) Trunk 2.0 - page 145

ITG Engineering Guidelines Page 145 of 378

ITG Trunk 2.0 ISDN Signaling Link (ISL) Description, Installation and Operation

Packet

loss (%)

One-way

delay (ms)

QoS level

G.729A G.711A/G.711u G.723.1

4 400 -440 fair fair poor

5 50-180 good good good

5 190-210 good good fair

5 220 -360 fair fair fair

5 370 -400 fair fair poor

6 50-200 good good fair

6 210 -330 fair fair fair

6 340 -380 fair fair poor

7 50-140 good good fair

7 150 -310 fair fair fair

7 320 -340 fair fair poor

8 5 0-290 fai r fai r fai r

8300-320 fair fair poor

950-270 fair fair fair

9280-300 fair fair poor

10 50-260 fair fair fair

Table 24

ITG QoS levels (Part3 of 4)

Note:

The QoS levels are equi valent to the following MOS values: (See page 56 for m ore details)

• excellent 5

•good 4

•fair 3

•poor 2

Contents

Main Meridian 1 Meridian Internet Telephony Gateway (ITG) Trunk 2.0/ISDN Signaling Link (ISL) Description, Installation and Operation Page Page Page Contents ITG Engineering Guidelines . . . . . . . . . . . . . . . . . 71 Page ITG MAT PC management configuration . . . . . . . 147 Install and configure ITG ISL Trunk node . . . . . . . 153 Page OA&M using MAT applications . . . . . . . . . . . . . . . 247 OA&M using the ITG shell CLI and overlays . . . . 275 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295 Appendix A: Cable description and NT8D81BA cable replacement . . . . . . . . . . . . . . . . 333 Page Page About this guide Page Description ITG ISDN IP Trunk tandems Meridian 1 to IP network, providing point to multi-p o in t co n n e c tio n DSP t System requirements Page List of ITG ISDN components Page Page Ordering rules and guidelines Ordering rules for ITG ISL Trunk node initial configuration Ordering rules for ITG ISL Trunk node expansion Sparing ratios for ITG Trunk components ITG ISL Trunk card description Card roles Page Page Page ITG NODE Card combinations Interactions among card functions Page Page ITG ISL Trunk card physical description MSDL XNET XNET IPE Shelf Faceplate indicators, controls, and interfaces Page Page Backplane int erfaces Assembly description Page ISDN Signaling Link Description Page 45 of 378 Figure 7 ITG configuration IP Network Page Inter-card signaling paths DCH Processor H.323 Processor Page Dialing plans Multi-node configuration North American dialing plan ITG Flexible Numbering Plan CPE Electronic Switched Network (ESN) Network Signaling DN 7000 ITG Echo cancellation Silence Suppression DTMF Through Dial Quality of Service Quality of Service parameters Network performance utilities E-Model Fallback to alternate facilities Triggering Fallback to alternate trunk facilities Return to the IP ne twork Type of Service Page Fax support Remote Access Per-call statistics support using RADIUS Client Configuration Messaging Page SNMP MIB MIB-2 support ITG SNMP agent Page Codec profiles G.711 G.729A G.729 G.723.1 (5.3 kbit/s or 6.3 kbit/s) Security passwords Administrator level Technical support level ITG Engineering Guidelines Introduction Audience ITG equipment requirements Scope Network engineeri n g guidelines overvi ew Page ITG traffic engineering Use of Ethernet and WAN bandwidth Page Page 78 of 378 ITG Engineering Guidelines Note 1: Note 9: Note 8: Disable silence suppression at tandem nodes Simultaneous voice traffic with silence suppression Page 80 of 378 ITG Engineering Guidelines 553-3001-202 Standard 1.00 April 2000 Table 6 Silence suppression disabled T-LAN Ethernet and WAN IP bandwidth usage per ITG port Note 8: Note 7: T-LAN traffic calculations The following are calculation procedures for T-LAN: Page Page General LAN and WAN engineering considerations Fax engineering considerations Configuration of Meridian 1 routes and network translation Configure the IP router on the T-LAN Leader And DCHIP Card Real Time Engineering Page Page Page Page Page Provisioning ITG IS L TIE trunks and routes Page Page WAN route engineering Page Page Page Assess WAN link resources Link utilization Estimate network loading caused by ITG traffic Page Route Link Traffic Estimation Page Decision: Enough capacity? Insufficient link capacity Other intranet resource considerations QoS Evaluation Process Overview Set QoS Page Page QOS leve ls with G.729A cod e c QOS leve l wi th G . 711A/G.711U codec Packet l o ss (%) One-way delay (ms) QOS leve ls with G.723 co dec Measure intranet QoS Measure end-to-end network delay Measure end-to-end packet loss Adjust ping measurements Network delay and packet loss evaluation example Page Other measurement considerations Obtain QoS measurement tools Decision: does the intranet meet expected ITG QoS? Fine-tune Networ k QoS Components of delay Page Queueing delay of various links Reduce link delay Page Reduce hop count Adjust jitter buffer size Reduce packet errors Routing issues Network modeling Implement QoS in IP networks Traffic mix TCP traffic behavior ITG support for TOS field and IP QoS Queue management Use of Frame Relay and ATM services Internet Protocols and Ports Used by ITG ITG ISL Trunk card connections Set up a system with separate subnets for voice and management Subnet configurations Single subnet option for voice and management Multiple ITG nodes on the same E-LAN and T-LAN segments Setting up the E-LAN or management subnet Selecting public or private IP addresses T-LAN engine er ing Setting the Quality of Service threshold for fallback routing Basic setup of the ITG system ITG Trunk DSP profile settings Codec types Fall back threshold Payload size Silence suppression parameters (Voice activity detection) Jitter buffer parameters (Voice playout delay) Post-installation network measurements Set ITG QoS objectives Intranet QoS monitoring ITG network inventory and configuration User feedback Page Estimate QoS level Page Page Page ITG MAT PC management configuration MAT ITG Engineering rules MAT network setup guidelines MAT Remote Access configuration ITG MAT PC management configuration Page 149 of 378 MAT PC description Figure 20 Remote access with full access to the customers LAN/WAN 553-9308 Enterprise LAN (C-LAN)Enterprise LAN (C-LAN ) M1 Core Page MAT PC hardware and software requirements Hard drive requirements 234 Install and configure ITG ISL Trunk node Before you begin Installation Procedure Summary Page Create the ITG Trunk Installation Summary Sheet Page Install and cable ITG trunk cards Card installation procedure Page Page Install NTCW84JA Large System I/O Panel 50-Pin filter adapter Remove existing I/O panel filter adapter System I/O Panel Install NTMF94EA and NTCW84KA cables Install the NTCW84KA cable (for DCHIP cards) Page Install the NTMF94EA cable (for non-DCHIP cards) Install shielded voice interface (T-LAN) cable Install shielded management interface (E-LAN) cable D-channel cabling for the NT0961AA 24-Port ITG Trunk card Large systems required cables and filters Set NT6D80 MSDL switches Install filter and NTND26 cable (for MSDL and DCHIP cards in same Large System equipment row) Page Page Meridian 1 Small System cable installation (Option 11C and Option 11C Mini) Install the serial cable Configure ITG Trunk data on the Meridian 1 Configure the ISL D-channel on the Meridian 1 for the DCHIP card Page Page Page Configure ISDN feature in customer data block Configure ITG ISL TIE trunk routes Note: You must configure Trunk routes as TIE routes.. Page Page Configure ITG ISL trunk cards and units Record the first CHID for each ITG ISL Trunk card on the installation summary sheet. See Note 1. Page Configure dialing plans within the corporate network Make the ITG the first-choice, least-cost entry in the route list block Turn on Step Back on Co ngestion (SBOC) for the ITG Trunk route Turn off ITG route during peak traffic periods on the IP data network ESN5 network signaling Page Page Page Page Disable the ITG Trunk cards Configure ITG Trunk d ata on MAT Add an ITG Trunk node on MAT manually Add a node and configure general node properties Set node location properties Single vs. separate subnets for T-LAN and E-LAN Configure Network Connections same subnet separate subnets Configure card properties Page Page Page Configure DSP profiles for the ITG Trunk node Page Page Page Chan e default DiffServ/TOS value for Control and Voice Configure SNMP Traps/Routing and IPs tab Configure Accounting server Page Set Security for MAT SNMP access Exit node property configuration session Create the ITG Trunk node dialing plan using MAT Confi ure General tab Qualit y of service Confi ure Di Page Retrieve the ITG Trun k node dialing plan using MAT Page Transmit ITG trunk card configuration data from MAT to the ITG trunk cards Before you can transmit configuration data Setting the Leader 0 IP address Configure the IP address of the Leader 0 ITG card, using the ITG shell command line inte rface. Note 3: Note 4: Appendix D Transmit the node properties, card properties and dialing plan to Leader 0 Verify installation and configuration Observe ITG ISL trunk status in MAT Transmit Card Properties and Dialing Plan to Leader 1 and Follower cards Verify that the ITG Trunk cards are disabled in the Meridian 1 before transmitting card properties. Page Set date and time for the ITG ISL Trunk node Change the default ITG shell password to maintain access security Change default ESN5 prefix for non-ESN5 IP telephony gateways Page Check card software Page Transmit new software to ITG Trunk cards Page The software upgrade pro cedure is complete. Upgrade the DCHIP PC Card Page Configure MAT Alarm Management to receive SNMP traps from ITG ISL Trunk cards Page Page Make test calls to the remote ITG nodes Upgrade an ITG Trunk 1.0 node to support ISDN signaling trunks Upgrade procedure summary Before you begin Install the DCHIP hardware upgrade kit Page Install the DCHIP I/O Panel breakout cable from the upgrade kit Upgrade the 8-port ITG basic trunk software to ITG ISL trunk software Step 1 - Remove ITG 1.0 configuration files Appendix D Note 4: Note 3: Step 2 - Transmit ITG Trunk 2.0 software to the 8-port cards Page Remove ITG 1.0 configuration data from Meridian 1 Configure the Meridian 1 ITG ISL Trunk data: upgrade considerations Verify ROM-BIOS version Upgrade Troubleshooting MAT cannot refresh view (Card not responding) How to upgrade software using the ITG shell Use this procedure if MAT displays a Card status of Not Responding. OA&M using MAT applications MAT OA&M procedure summary Alarm Notification on page269 Delete a node To delete a card, perform the following steps: Database locking ITG Card Properties ITG Card Properties Maintenance window Page ITG Card Properties Configuration window DSP maintenance window D-channel maintenance Add Dialing Plan entries Page Page Page Page Transmit configuration data Page Page Add an ITG ISL Trunk node o n MAT by retri eving an existi ng node Page Page Retrieve and add an ITG ISL Trunk Node for maintenance and diagnostic purposes Configuration audit Retrieve ITG configuration information from the ITG node Page Schedule and generate and view ITG OM reports Backup and restore operations Alarm Notification Meridian 1 system commands - LD 32 Page Disable the indicated ITG card To disable the indicated ITG card in LD 32, use the following command: Page Page OA&M using the ITG shell CLI and overlays ITG Shell OA&M procedure summary Access the ITG shell through a maintenance port or Telnet Connect a PC to card maintenance port Telnet to an ITG card through the MAT PC Change the default ITG shell password to maintain access security You will be prompted for the current user name: Reset the defau lt ITG shell pa ssword Download the ITG operational measurements through the ITG shell > for the previous file. <hostname, username, password, directory path, filename > for the current file, or prevOMFilePut <hostname, username, password, directory path, filename Reset the operational measurements Display the number of DSPs Display ITG Node Properties Transfer files through the command line interface Page Upgrade ITG card software from the command line interface Page Up rade ITG card software via an FTP hos t Backup and restore from the ITG command line interface Recover the SNMP community names IP configuration commands Download the ITG error log Meridian 1 system commands - LD 32 Page Disable the indicated ITG card To disable the indicated ITG card in LD 32, use the following command: To disable a indicated ITG port in LD 32, use the following command: Disable the indicated ITG card when idle To disable the indicated ITG card when idle in LD 32, use the following command: Page Page Page Maintenance ITG Trunk 2.0 alarms Page Page Page Major Alarms Immediate intervention required Page System level maintenance Access the ITG card ITG card overlay commands Page MAT maintenance commands Multi-purpose Serial Data Link (MSDL) commands Simple Network Management Protocol (SNMP) TRACE and ALARM/LOG ITG shell command set Page Page Page hostname Hostname Example: Page Page Page Page Page ITG card self-tests Card LAN BIOS self-test Base code self-test Field-Programmable Gate Array (FPGA) testing Upgrades Page Up rade softwar e u sin MAT Replace an ITG card Page Page Check card software Transmit card properties and dialing plan Backup and restore proced ur es ITG card MAT Command line interface Fault clearance procedures DSP failure Card failure DCH failure Page ITG Trunk 2.0 faceplate maintenance display co des Page Page Page Page To Hub Page NTCW84KA E-LAN, T-LAN, DCH & Serial cable Page NTAG81CA Faceplate Maint en an ce ca ble Page NTAG81BA Maintenance Extender cable Page Page NTMF04BA MSDL extension cable 15 way Male D-Sub 15 way Female D-Sub NTCW84LA and NTCW84MA upgrade cables Page Page Page Prevent ground loo p s on connection to external customer LAN equipment Replace cable NT8D81BA with NT8D81AA Appendix A: Cable description and NT8D81BA cable replacement Page 351 of 378 Figure 65 Backplane slot designations Tools list Ty-wrap cutter Ty-wraps Needle nose pliers Slotted screwdriver NT8D81BA cable removal procedures Segment 0 L15 L14 L13 L12 L11 L10 L9 L8 L7 L6 L5 L4 L3 L2 L1 L0 1 Install NTCW84JA filter and NT8D81AA cable Appendix B: Environmental and electrical r e g ulatory data Environmental specifications Mechanical conditions Refer to Table66 for ITG mechanical tolerance ranges. Storage Temperature shock Mechanical Electrical regulatory standards Safety Electromagnetic Compatibility (EMC) Page Appendix C: Subnet mask conversion from CIDR to dotted decimal format Page Page IP Packet Filtering Idle time-out disconnect for dial-in PPP connection. Install the RM356 modem router Configure the MAT ITG PC to communicate with a remote Meridian 1 site via modem router Configure the RM356 modem router by the manager menu Page Page Page Page Page Page Page Page Page Page Page Page Page Index Numerics A B C H I J L M T V Page Page Meridian 1 Meridian Internet Telephony Gateway (ITG) Trunk 2.0/ ISDN Signaling Link (ISL) Description, Installation and Operation