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Issue 1 October 2007 185

17. Avaya G860 Media Gateway Selected Technical Specifications

Table 41: Avaya G860 Media Gateway Technical Specifications

Function

Specification

SIP

draft-ietf-avt-rtp-clearmode-05.txt

- RTP payload format for a 64 kbit/s

transparent call

draft-ietf-sip-referredby-04

- The SIP Referred-By Mechanism

draft-ietf-sip-session-timer-15

- Session Timers in the Session Initiation

Protocol

draft-levy-sip-diversion-08 -

Diversion Indication in SIP

draft-vandyke-mscml-04

- Media Server Control Markup Language

(MSCML)

draft-ietf-sipping-qsig2sip-04.txt

- Interworking between SIP and QSIG

draft-ietf-sipping-realtimefax-01.txt

- SIP Support for Real-time Fax:

Call Flow Examples

draft-choudhuri-sip-info-digit-00.txt

- SIP INFO method for DTMF digit

transport and collection

draft-mahy-sipping-signaled-digits-01.txt

- Signaled Telephony Events

in the Session Initiation Protocol

Security

IPSec (ESP) with
IKE pre-shared
key

IPSec is supported for the management traffic to EMS/ NMS/ OSS.

Encryption algorithms - DES and 3DES

Hash types - SHA1 and MD5

Media Gateway
Boards-Based
Firewalls

Up to 20 Filtering criteria rules according to:

Source IP-address and subnet

Destination port range

Protocol type

Packet size

Traffic rate in bytes-per-second

Access Control
Lists

The control interfaces can be protected by access control lists.

SSH (Secure
Shell)

To secure the Telnet and SFTP Server

SSH Protocol Version 2

Supported encryption algorithms: AES-128, BLOWFISH, 3DES

Supported authentication algorithms: SHA1, MD5

User/password authentication on each login

SSL (the Secure
Socket Layer)

To secure Media Gateway Boards web server and telnet

Supported transports: SSL 2.0, SSL 3.0, TLS 1.0

Supported ciphers: DES, RC4 compatible

Authentication: Username & Password, X.509 certificates

Содержание G860

Страница 2: ...he Customer or End User Link disclaimer Avaya Inc is not responsible for the contents or reliability of any linked Web sites referenced elsewhere within this documentation and Avaya does not necessarily endorse the products services or information described or offered within them We cannot guarantee that these links will work all of the time and we have no control over the availability of the link...

Страница 3: ...oards 23 2 5 1 1 TPM Board Panel T3 LED Indicators 26 2 5 1 2 TPM RTM 27 2 5 2 SC System Controller Board 29 2 5 2 1 Front Panel PS2 COM Serial Port 31 2 5 2 2 System Controller Panel Indicators Controls 31 2 5 3 SA Synchronization and Alarm RTM 32 2 6 Ethernet Switch Boards 35 2 6 1 ES 6600 Used in Avaya G860 Media Gateways Configurations 35 2 6 1 1 ES 6600 Panel Indicators 37 2 6 1 2 ES 6600 Phy...

Страница 4: ...nections for Non Synchronized Mode For TPM T3 System Configurations Only 58 5 Unpacking Checking Contents 59 6 Mounting the Chassis on a Rack 61 7 Earthing 65 7 1 Earthing the Gateway 65 8 Powering Up 67 8 1 Connecting System Power 67 8 1 1 Connecting Power TPM System Configuration 68 8 1 1 1 Connecting DC Power 68 8 2 Post Power Connection Test Procedures Checklist 70 8 2 1 Post Power Connection ...

Страница 5: ...perating the Ethernet Switch Boards 104 12 2 1 Link Status 104 12 2 2 Board Actions 105 12 3 Configuring the Subnets IP Addresses of the Media Gateway 105 12 4 Working with VLANs 106 12 4 1 VLAN Tagging 107 12 4 1 1 Defining VLANs 107 12 5 Interface Separation 108 12 6 Link Aggregation in Avaya G860 Media Gateway 109 12 7 Setting DiffServ Priorities 109 12 8 Security in the Avaya G860 Media Gatewa...

Страница 6: ...es 131 14 1 Board Replacement Preliminaries 131 14 1 1 ESD Requirements 131 14 1 2 Slot Cover Requirements 132 14 1 2 1 Slot Cover Requirements 132 14 2 SC Board Replacement Procedure 133 14 2 1 Installing the Solaris 9 OS 134 14 2 1 1 Installation Requirements 134 14 2 1 2 Preparing the Install Image 135 14 2 1 3 Installing the Solaris 9 OS on the SC board 136 14 2 2 Installing the SC Software 13...

Страница 7: ...cs Troubleshooting 177 16 1 Troubleshooting Strategy 177 16 2 Troubleshooting 178 16 2 1 Troubleshooting for the Avaya G860 Media Gateway Configuration 178 16 3 Syslog Support 181 16 4 Gateway Faults and Alarm Monitoring 181 16 4 1 List of Alarms 182 16 5 Log Utilities in Avaya G860 Media Gateway 183 16 5 1 Log Areas 183 16 5 1 1 Customer s Log Area 183 16 5 1 2 Avaya Technical Support Log Areas 1...

Страница 8: ...4 18 3 Enabling PSTN Trace via the Web 205 19 Appendix Getting Started with MIBs 207 19 1 MIBS and Provisioning Options 207 19 1 1 Configuring a Newly Inserted Media Gateway board 208 19 1 2 Modifying an Media Gateway board Configuration 209 19 1 3 Modifying a Trunk Configuration 210 19 1 4 Removing an Media Gateway board 211 20 Regulatory Information 213 21 Index 217 ...

Страница 9: ...ewed by registered Technical Support customers at www avaya com under Support Product Documentation 2007 Avaya Inc All rights reserved This document is subject to change without notice Trademarks Avaya and Avaya logo are trademarks or registered trademarks of Avaya Inc All other products or trademarks are property of their respective owners Customer Support Customer technical support and service a...

Страница 10: ...ion of a chassis and includes operation instructions and maintenance guidelines troubleshooting procedures It is intended for skilled installers system level technicians and system managers Document 03 601918 EMS User s Manual The EMS Element Management System is an application that is used to configure and monitor all gateway elements from a remote location Through the EMS the system operator can...

Страница 11: ... and modular solution designed for a large campus and or a large call center with demands for high availability reliable new voice infrastructure networks For maximum reliability the Avaya G860 Media Gateway features protection switching and full redundancy of all common equipment 1 1 Media Gateway Block Diagrams The block diagrams of the Media Gateway Server options are illustrated in the figures...

Страница 12: ...isk Optional User Application Satellite CPU On board Disk Gigabit Ethernet Uplinks Gigabit Ethernet Uplinks Alarm Card SNMP Sync Alarm RTM Optional Redundant IP Network Power Supply Modules Fan Tray Units V LEDs Push Buttons Midplane ON Board DISK User Application Satellite CPU On board Disk System Controller On board Disk STRETTO 3G UMTS cPCI BOARD STRETTO 3G UMTS cPCI BOARD STRETTO 3G UMTS cPCI ...

Страница 13: ...y Figure 2 Avaya G860 Media Gateway The table below details the components of the Avaya G860 Media Gateway Component Redundant Configuration Chassis 1 SC System Controller 2 SA RTM Synchronization and Alarm Rear Transition Module 2 ES 6600 Ethernet Switch Board 24 Gigabit Ethernet 2 ES 6600 RTM Ethernet Switch 7 I O Rear Transition Module 2 TPM Media Gateway Boards Up to 4 TPM RTM TPM I O Rear Tra...

Страница 14: ...60 Media Gateway slots 5 and 6 require blank panels as part of the temperature control system 2 1 2 Avaya G860 Media Gateway Accessories Kit Each Avaya G860 Media Gateway is accompanied by an accessories kit which includes RS 232 Straight Cable for System Controller Console Terminal not crossed over RS 232 Straight Cable for Ethernet Switch Console Terminal not crossed over AC Power Cable as per c...

Страница 15: ...1 Avaya G860 Media Gateway Front View Component Descriptions Item Label Component Description 1 TPM Boards 2 Blank and Baffled Panels 3 ESD Connectors on the Attachment Brackets 4 Fan Tray Module with Alarm LEDs 5 ES 6600 Ethernet Switch Boards 6 System Controller SC Boards 7 FMR Auxiliary Fan Module 8 Power Supplies ...

Страница 16: ...nent boards have a sturdy hot swap cPCI 6U form factor Boards are inserted from the front and the back and engage the midplane on either side inside the card cage Slots for the boards are numbered from one to ten on the left of the card cage in the front for identifying board placement The midplane contains slot keys to match the appropriate board This prevents insertion of a board in a wrong loca...

Страница 17: ...ed in the outside plant shall be grounded in accordance with Rule 99 of the most recent edition of the National Electrical Safety Code NESC ANSI IEEE C2 36 Safety Earth Intrinsically the Avaya G860 Media Gateway chassis must be safety earthed using an equipment earthing conductor Do not depend on locknut bushings and double locknuts for bonding purposes Use the earthing hardware provided with the ...

Страница 18: ...ower entry circuitry Recommendations for DC Power input When using DC power as the primary input ensure that the power supply complies with the safety requirements of Call Agent CAN CSA C22 2 No 60950 00 and UL 60950 and EN 60950 For High Availability connect two separate DC power sources to avoid total power failure if one of the DC power sources fails WARNING For AC only one PEM is to be install...

Страница 19: ...re is conductivity of the frame to the enclosure 2 3 3 Midplane Keying Each slot is equipped with a key on the midplane to match the appropriate board type in order to prevent inserting a wrong board type into the slot Note While the slot keys on the midplane are designed to prevent the insertion of a board in an incorrect location be sure NOT to force a board into a slot to avoid damaging either ...

Страница 20: ...des of the chassis The front blank baffled panels are especially constructed to allow optimal air flow within the chassis The FM Fan Tray Module is easily removed and is hot swappable The FM contains 5 fans providing required airflow for each board in the card cage even if one of the fans stops working 2 4 1 FPM Advanced Fan Power Module In the TPM system configuration the Advanced Fan Power Modul...

Страница 21: ...ray unit panel contains the system s alarm indicators LEDs Alarm Cutoff and Reset buttons The alarm indicators are connected to the fault detection and alarm system provided with the Avaya G860 Media Gateway As needed LEDs indicate critical major or minor system faults as well as system and shelf alarms Figure 7 FM Fan Tray Unit Panel and Alarm Indicators ...

Страница 22: ...are also lit Green Green when no Major alarms MAJOR LED Indicates the detection of a fault or faults categorized as Major Orange Default Orange when Major alarm is set When this LED is on the Minor severity LED is also lit Green Green when no Minor alarms MINOR LED Indicates the detection of a fault or faults categorized as Minor Orange Default Orange when minor alarm is set Green Green when initi...

Страница 23: ...eivers The TPM RTM is designed for protection capabilities and provides a unique Redundant protection functionality The TPM RTM HA Redundant itself does not provide any PSTN or ATM ports The same redundant RTM should be used for both STM 1 future and T3 versions Slots 7 to 10 are used for up to 4 TPM boards including the redundant TPM board according to the customer s requirements The correspondin...

Страница 24: ... ALRM A B and C Alarm Red Fail Red Board Faillure ACT Green Installation OK Yellow Standby SWAP READY Blue Board can be removed or has been inserted successfully ATM RX TX Receive Transmit Blinking Green Link OK Rx Tx OK Green Link OK No Rx Tx Blinking Yellow Protection Link OK Rx Tx OK Yellow Protection Link OK No Rx Tx ALRM Alarm Red See Board Panel LED Alarm Signals for SDH or SONET Terminology...

Страница 25: ...Off Normal operation A B Alrm Red Refer to TPM Board Panel LED Alarm Signals for SDH or SONET Terminology Link Off No Link PSTN C Alrm Off Off No Link Blinking Green Working Link OK Rx Tx OK Green Working Link OK No Rx Tx Blinking Yellow Protection Link OK Rx Tx OK Rx Tx Yellow Protection Link OK No Rx Tx Off Normal operation 1A 2A 1B 2B Alrm Red Refer to TPM Board Panel LED Alarm Signals for SDH ...

Страница 26: ...iplex Section Remote Defect Indication RDI L L Line Off Normal Operation 2 5 1 1 TPM Board Panel T3 LED Indicators Table 8 TPM T3 Board Panel LED Indicators Group LED LED Label Color States Off Normal Operation FAIL Red Failure Off Stand alone board non HA system Blinking Yellow Redundant board in standby mode ACT Green Working board Off No Link Green T3 Synchronized Link Yellow RAI Remote Alarm I...

Страница 27: ...ion see Note 2 5 1 2 TPM RTM The TPM Rear Transition Module RTM board TPM RTM provides the fiber optic I O connections for the following interfaces STM 1 OC 3 PSTN future T3 DS 3 PSTN Each I O connection is an SFP Small Form factor Pluggable module with hot insertion capabilities provided with a 155 Mbps optical SFP Module for a fiber optic OC 3 STM 1 interface Each T3 DS 3 PSTN connection uses an...

Страница 28: ...ATM STM 1 OC 3 1 1 Redundancy 1A and 1B Make a redundant pair Dust covers cover the unused receptacles PSTN T3 A TX RX B TX RX C TX RX AMP AMP Note The unused SFP receptacles are covered with dust covers as shown in the figure above All of the boards are hot swappable the boards can be removed or inserted when the system is under power ...

Страница 29: ...I Industrial Computers Manufacturers Group PICMG CompactPCI Packet Switched Backplane compliance and is NEBS Level 3 certified to meet the requirements of the communications and service provider environments The SC board provides one vacant PCI mezzanine card PMC slot which allows expanding its functionality in the future The SC boards are located in the first two slots 1 and 2 color coded red in ...

Страница 30: ...30 Installation Operation Manual Avaya G860 Media Gateway Figure 10 SC Panel ...

Страница 31: ... 5 RXD 2 CTS 6 RTS 3 TXD 7 DCD 4 GND 8 Shield GND 2 5 2 2 System Controller Panel Indicators Controls Several indicators are located on the SC refer to the table below Table 10 SC Board Indicators Label Color Function Activity Green Located on the PMC hard disk PMC module Lit each time the SC software accesses the hard disk During normal operation it blinks Blinking Green Blinking Green indicates ...

Страница 32: ...utton switch is pressed it generates a Power On Reset POR signal 2 5 3 SA Synchronization and Alarm RTM The SA alarm rear termination modules SA RTMs provide the chassis management capabilities for the SC boards by controlling the fans operation monitoring the correct operation of the power supply modules monitoring the midplane voltages controlling the chassis LEDs and Telco alarm relays It funct...

Страница 33: ...pe connector P1 The signal interface of the connector is according to the table below Table 11 SA RTM RS 232 Console Pin Signal Interface P1 Pin Signal Name P2 Pin 1 1 2 RX Receive Data 3 3 TX Transmit Data 2 4 4 5 GND Ground 5 6 6 7 7 8 8 9 9 Table 12 SA RTM LED Indicators Label Color Function FAIL Red Board failure fatal error Green Board initialization sequence terminated OK Indicates the Activ...

Страница 34: ...34 Installation Operation Manual Avaya G860 Media Gateway Figure 12 SA RTM Panel ...

Страница 35: ...SB compliant Ethernet ports 11 are connected to the Avaya G860 Media Gateway midplane slots the remainder are for future use Front or rear panel console port RS 232 Front panel 10 100Mbps out of band 10 100Base TX Ethernet port for management Dual 44Gbs switched fabrics Advanced Fast Filter Processor for wire speed Layer2 7 packet classification and filtering Support for hardware connection layer ...

Страница 36: ...36 Installation Operation Manual Avaya G860 Media Gateway Figure 13 ES 6600 Panel ...

Страница 37: ...ports flash the Activity indicator when there is transmit or receive activity Note 2 The Gigabit SX ports flash the Activity indicator when there is receive activity only Table 14 Port Speed Indicators Indicator Status Switched Ports Management Ports Yellow 1000 Mbps 100 Mbps OFF 10 or 100 Mbps 10 Mbps Table 15 System Indicator Indicator Status Function Green Board is operational Yellow Board is b...

Страница 38: ...nnected internal Ethernet links Note 2 Occupied in terms of the Ethernet Switch and reflected by the indicators Table 18 ES 6600 Physical Slots to Ethernet Port Correlation Slot Number Slot 3 Ethernet Switch Port Slot 4 Ethernet Switch Port Dedicated to Board Type 1 1 1 SC 2 2 2 SC 3 24 Ethernet Switch 4 24 Ethernet Switch 5 3 3 N A 6 4 4 N A 7 5 5 TPM 8 6 6 TPM 9 13 13 TPM 10 14 14 TPM 18 18 GbE ...

Страница 39: ...ot Number Slot 3 Ethernet Switch Port Slot 4 Ethernet Switch Port Dedicated to Board Type 1 1 1 SC aggregated with port 21 and 22 21 21 GbE port used aggregated with port 20 22 22 GbE port used aggregated with port 20 when Media Aggregation Enabled 23 23 GbE port used as mirror port for Maintenance purposes ...

Страница 40: ...ES 6600 Ethernet Switch board and allows connection from the Avaya G860 Media Gateway to 10 100 1000Base T external Ethernet equipment The ES 6600 RTM also contains an RS 232 console port which is used for configuration or debugging Figure 14 ES 6600 RTM Table 19 ES 6600 RTM Port Pin Outs Pin Number Signal Name 1 Rx ...

Страница 41: ... the rest of the TPM boards begins in Slot 9 The fourth final TPM board is inserted in slot 7 Note 1 For all TPM system configuration board assembly options Slot 5 must retain the blank panel with air baffle and Slot 6 must retain the blank panel Note 2 Redundant TPM board requires the TPM RTM Redundant Table 20 TPM System Configuration Board Assembly View 1 Slot Front Board Rear Board Slot 1 SC S...

Страница 42: ...rted in slots 9 and 10 blank panels are inserted in slots 6 and 8 and air baffles are inserted in slots 5 and 7 Table 21 TPM System Configuration Board Assembly View 2 Slot Front Board Rear Board Slot 1 SC SA RTM Slot 2 SC SA RTM Slot 3 ES 6600 ES RTM Slot 4 ES 6600 ES RTM Slot 5 Blank Panel Air Baffle Blank Panel Slot 6 Blank Panel Blank Panel Slot 7 Blank Panel Air Baffle Blank Panel Slot 8 Blan...

Страница 43: ...sole power and earthing cables Powering up the system Verifying that the system is in working order Next is the Software Installation phase which consists of Defining IP parameters Configuring Sun Solaris OS Installing and configuring the System Controller software Connecting to external equipment Installing the trunk cables The final installation phase consists of configuring the Element Manageme...

Страница 44: ...e Site Install Hardware Unpacking Checking Contents Connecting IP Network Connecting Console Terminal Cable Connecting Grounding Power Wiring Connecting Network Cables Chassis Mounting Install Hardware Cont Connecting ATM PSTN Interfaces Powering Up Preparing Hardware Environment Preparing IP Network PSTN Network etc Parameter Requirements System Checks Network Integration Testing Connecting Exter...

Страница 45: ...Issue 1 October 2007 45 3 Installation Process Flow Reader s Notes ...

Страница 46: ......

Страница 47: ... the Network Time Protocol A backup platform for redundancy is recommended The EMS server may also be configured to serve as the NTP Server SNMP Management Station Avaya EMS Element Management System or Customer EMS Alternatively a MIB Browser can be used for minimal management operations PC Terminal Console The PC is used to install and configure the SC board software Telco Rack 19 inch rack can ...

Страница 48: ...edia Gateway Circuit breaker A 25A max double pole circuit breaker to act also as a disconnect device The capacity of the circuit breaker in the electrical cabinet must be sufficient to handle the power requirements described in this document Power consumption Provide sufficient capacity for the average power consumption for a full complement of boards Power consumption Avaya G860 Media Gateway ch...

Страница 49: ...r connection to dual Tx and Rx 155 Mbps Optical transceivers These cables should be as specified in GR 253 CORE Length is determined by the customer Quantity 1 fiber pair for each utilized interface on a TPM board Small Factor Optical transceivers SFP modules are supplied as part of the Media Gateway board Refer to Connecting the PSTN and ATM Interfaces on page 97 PSTN T3 cables Twin T3 cables to ...

Страница 50: ...vided with the product documentation However the MAC Address field in the table below is provided for your convenience Note The PC should be in the same subnet as that of the Avaya G860 Media Gateway components that communicate with the PC 4 2 1 Gateway Addresses If the network requires a Single IP configuration use the Single IP Configuration column in the table below If the network includes 3 su...

Страница 51: ...g table for specifying the DiffServ priority settings They should be taken from the Network configuration Table 28 DiffServ Priority Parameters DiffServ Class Name Protocol Group DiffServ Priority Network Communications between network devices within one administrative domain like ICMP COPS RSVP DNS DHCP BootP high priority OAM Premium Media Telephony service like RTP media T 38 Fax over IP Lawful...

Страница 52: ... relevant to all of the protocols in the Protocol group 4 2 5 IEEE 802 1p QoS CoS Layer 2 Traffic Prioritization If IEEE 802 1p is specified prepare the following information Table 29 IEEE 802 1p Service Priority Classes Service Priority Classes Tag Network Service Class DiffServ Premium Media DiffServ Premium Control DiffServ Gold Service Class DiffServ Bronze Service Class DiffServ 4 2 6 Securit...

Страница 53: ...o L 3 switching 5 N A N A 6 N A N A 7 TPM 8 TPM 9 TPM 10 TPM 4 3 Environmental Requirements The Avaya G860 Media Gateway chassis mechanical envelope complies with the requirements of NEBS GR 63 CORE Issue 2 The table below provides a list of the mechanical requirements which were imposed on the chassis design Table 32 NEBS Requirements Physical Protection Requirements Test level Reference GR 63 pa...

Страница 54: ...25 o C 40 o F to 77 o F within 5 mins 70o C to 25o C 158o F to 77o F within 5 mins 5 1 1 1 5 1 1 2 Presently the system operation is guaranteed under the following conditions 4 4 Environmental Conditions 4 4 1 1 Temperature Table 33 Temperature Range Extended Short term Temperature Range for Operation 5o C to 55o C 32o F to 131o F Recommended Ambient Temperature 5o C to 40o C 104o F to 86o F 4 5 I...

Страница 55: ...eway and external equipment can be aggregated for media traffic to achieve a maximum 3 Gigabit Ethernet bandwidth This configuration is more economical when more than one Avaya G860 Media Gateway is deployed at a single site The local communication between multiple Avaya G860 Media Gateways passes through the two interconnected L 2 switches while all external communication passes through ports to ...

Страница 56: ...ork be sure to investigate the type and the topology of the provided links and follow the checks listed below 1 Verify that the provided link is behind the Add Drop Multiplexer ADM 2 Investigate SONET SDH configuration parameters 3 Verify that there is a concatenated framing format variant such as OC 3C defined for the ATM links It allows utilizing the frame for ATM packet transfer with a single o...

Страница 57: ...prioritized in order to achieve optimal synchronization switches The clock synchronization of the Avaya G860 Media Gateway can operate in one of the following modes Avaya G860 Media Gateway Configuration uses Non Synchronized mode only choosing from the ATM or PSTN interface for the clock reference 4 7 1 Connections for Non Synchronized Mode For TPM System Configurations Only future For TPM STM 1 ...

Страница 58: ... DS1 trunk continuing on to the last one Therefore the most qualified clock references should appear on the lowest trunk number of the multiplexed trunk stream When the clock quality of all multiplexed DS1 trunks are the same the clock reference may be chosen arbitrarily 4 7 3 Connections for Non Synchronized Mode For TPM T3 System Configurations Only When working with T3 interfaces each board is ...

Страница 59: ... cut through the tape that binds the carton closed and open the top cover of the carton 3 Open the protective plastic covering 4 Grasp the Avaya G860 Media Gateway chassis with both hands and lift it from the carton 5 Place the Avaya G860 Media Gateway chassis upright on a stable surface 6 Save the packaging material in case the equipment needs to be transported at a future time 7 Check the conten...

Страница 60: ...60 Installation Operation Manual Avaya G860 Media Gateway Reader s Notes ...

Страница 61: ...ation of the equipment in a rack should be such that the amount of air flow required for safe operation on the equipment is not compromised Mechanical Loading Mounting of the equipment in the rack should be such that a hazardous condition is not caused due to uneven mechanical loading Circuit Overloading Consideration should be given to the connection of the equipment to the supply circuit and the...

Страница 62: ...ng the chassis in place a second person fastens the chassis to the rack rails using four screws not provided two on each side of the chassis or as appropriate for your rack type Refer to the figure below Figure 18 Attaching the Chassis to the Rack Figure 19 Chassis on the Rack Front View ...

Страница 63: ...sis on a Rack Note If you are using pre installed support studs on the rack lift the chassis and mount in place over the installed studs Place washers over the studs and secure the caps Figure 20 Installing Rack Using Pre Installed Support Studs ...

Страница 64: ...64 Installation Operation Manual Avaya G860 Media Gateway Reader s Notes ...

Страница 65: ...s situated immediately to the right of each DC power connector or to the left of the AC power connector The chassis is supplied with earth lugs and screws The screw size is inch The lug diameter is 0 63 inches To connect the earthing take this step On the rear panel of the chassis for DC there are two pairs of earthing screws refer the figure below showing the DC version for AC there is one pair o...

Страница 66: ...66 Installation Operation Manual Avaya G860 Media Gateway Figure 22 Earthing Connections Chassis Rear PEM AC ...

Страница 67: ... in their dedicated slots refer to Front and Back Views of the Avaya G860 Media Gateway on page 14 5 Check the cables to the Ethernet Switches 6 Check that the console is connected to the SA RTM that is associated to the initial active SC board 7 Check that the SA RTM alarm cabling is secured to the Avaya G860 Media Gateway chassis as well as to the external equipment 8 Check that the Ethernet Swi...

Страница 68: ...ts Type Power Requirements Connection Provisions DC 40 5 to 60 V DC Input terminals 8 1 1 1 Connecting DC Power The rear of the chassis refer to the figure below is provided with redundant power inputs for DC each located on a PEM module For redundant protection each input terminals must be connected to a separate power source Each power entry port of the Avaya G860 Media Gateway must be connected...

Страница 69: ...e input terminal from the PEM 2 Connect two 14 AWG stranded wiring to the input paying attention to the polarity and tightening the upper screws 3 Reinsert the input terminal pin into the power input terminal and fasten the screws on the left and right sides Refer to the figure below 4 Check the LED indicators of the various boards are lit according to the table below 5 Repeat these steps for the ...

Страница 70: ...power Verify the polarity of the connected cables to the DC inputs 2 Verify that air is flowing out the air vents of the chassis by feeling the air flow at the vents 3 Check that there is communication via the console connected to the SA RTM that is associated to the initial active SC board Perform this check on both of the SC boards and SA RTM pairs 4 Using the Ethernet Switch RS 232 cable connec...

Страница 71: ...SC boards ALARM USER Flashing Green Indicates correct operation of processor Hot Swap OFF Normally OFF LED is Blue during Hot Swap PWR Green The board is correctly powered ACT OFF At initial power the Green ACT LED is OFF for all boards After software is installed on the SC board this LED on the boards is lit except for the redundant standby board for which it is OFF Media Gateway boards Hot Swap ...

Страница 72: ...e to the fans is improper Advanced Fan Power Module FPM Hot Swap OFF Normally OFF LED is Blue during Hot Swap Power Green Indicates ON Power input is within specified limits Power Supply Module FAULT OFF Normally OFF Red LED is ON Power input voltage is not within specified limits over temperature or input failure Power Green Normally ON Power input received Power Entry Module Swap Ready OFF Norma...

Страница 73: ... display options selected for a specific system but are generically applicable to all systems 9 1 Console Terminal Cabling The console terminal is connected to either the SC s PS2 COM serial port or the serial port on the SA RTM for the purpose of performing the initial software installation procedure This procedure must be performed on both of the SC boards The pin assignments for the SC s PS2 Co...

Страница 74: ...ver must be used to synchronize the date and time of the SC boards Avaya recommends using the EMS server as the NTP server of the Avaya G860 Media Gateway An NTP server is provided pre installed and pre configured on the EMS server However a third party NTP server may be used i e a Solaris server This section provides details on configuring a Solaris NTP server Note The NTP server must be installe...

Страница 75: ...sic SC Network Configuration Installs the SC software and updates the basic SC network parameters Performing the Basic SC Configuration Configures the basic IP parameters For the first SC board the installation and configuration procedures require selecting in part 1 option 1 to update the basic SC Network parameters and then in part 2 selecting option 3 to change the installed configuration Durin...

Страница 76: ... Example of the basic configuration process Entered text is shown in bold and the IP addresses are assumed for the purposes of this example install pl Found uncompressed Avaya installation package Verify installation package integrity SC software installation basic configuration 1 Update SC network parameters 2 Install and configure 3 Change installed configuration 4 Copy configuration from Primar...

Страница 77: ...0 0 10 2 0 0 8 To start the configuration type y and press Enter According to IP and mask network is 10 2 0 0 Start configuring y n n y Updated etc hosts Updated etc nodename Updated etc defaultrouter Updated etc hostname dmfe0 Updated etc netmasks Updated hostname Done 9 Since this is a first time configuration you can reboot the board at this time To reboot the SC board type y and press Enter Af...

Страница 78: ...the IP addresses are assumed for the purposes of this example Note the keyboard shortcuts detailed in the middle of the Example below install pl Found uncompressed Avaya installation package Verify installation package integrity SC software installation basic configuration 1 Update SC network parameters 2 Install and configure 3 Change installed configuration 4 Copy configuration from Primary SC 5...

Страница 79: ...IB Browser server For the Second EMS server which is not applicable accept the default of no IP address EMS server 0 0 0 0 10 6 1 8 6 At the NTP server IP prompt enter the IP address of the NTP server NTP server IP 10 2 229 57 7 At the Enable Security prompt to enable Security type 1 To disable Security type 0 For more information refer to About Security in the Avaya G860 Media Gateway on page 110...

Страница 80: ...new password It must be at least 4 characters You are prompted to re enter the new password The default passwords are SC Root root SNMP Read Community public SNMP Write Community private Note For security reasons it is recommended to change these passwords and make a note of the new passwords you enter for future reference SC Root Password leave unchanged SNMP Read Community leave unchanged SNMP W...

Страница 81: ...s Make backup of modified file etc srconf agt snmpd cnf Update SNMP community strings Update etc inet services Make backup of modified file etc inet services kill solaris SNMP deamon if exists Remove startup script of solaris SNMP deamon Make backup of deleted file etc rc3 d S76snmpdx Make backup of deleted file etc init d init snmpdx Remove usr lib smpdx Make backup of deleted file usr lib snmp s...

Страница 82: ...cord of new file var log daemon Make record of new file var log auth Update etc logadm conf file Make backup of modified file etc logadm conf reload syslogd configuration Configure crontab Make backup of modified file var spool cron crontabs root get current crontab configuration add cleanlogs job and statistics job to crontab reload crontab configuration Update root password ...

Страница 83: ...le_files TPTPM ini file to tftpboot TPTPM ini Copy Project Downloads baseinifile_files NormalTPTPM ini file to tftpboot NormalTPTPM ini Copy Project Downloads baseinifile_files RedundantTPTPM ini file to tftpboot RedundantTPTPM ini Copy Project Downloads dat_files file to tftpboot Backup original versions of tftpboot files IF CONFIGURATION IS DONE OK YOU MUST REBOOT THE SC 11 When installing softw...

Страница 84: ... To perform the basic SC configuration on the second SC board take these 3 steps 1 Follow the configuration scripts shown in the example below Example of Part 1 of the basic configuration process Entered text is shown in bold and the IP addresses are assumed for the purposes of this example Note the keyboard shortcuts detailed in the middle of the Example below install pl Found uncompressed Avaya ...

Страница 85: ... configuring y n y y The following is displayed Update etc inet inetd conf file Restore file etc inet inetd conf from the backup Update etc inet services file Restore file etc inet services from the backup refresh INET daemon Update root password Disable IPSEC configuration Configure Timer Resolution Make backup of modified file etc system Configure alternate break sequence Make backup of modified...

Страница 86: ...le var log auth Update etc logadm conf file Make backup of modified file etc logadm conf reload syslogd configuration Configure crontab Make backup of modified file var spool cron crontabs root get current crontab configuration add cleanlogs job and statistics job to crontab reload crontab configuration Update root password Tune up tmp filesystem Make backup of modified file etc vfstab Make backup...

Страница 87: ... both the first and second SC boards are complete reboot the SC board by entering y at the Reboot prompt or accept the default 3 Confirm the Reboot by entering y at the prompt or accept the default IMPORTANT If you have second SC DO NOT REBOOT this SC until installation of second SC already done Reboot both SCs at the same time Do REBOOT now n y y y Are you sure n y y y The software files are upda...

Страница 88: ...es VLAN tagging via the SC Console use the tools vlan script to add VLAN tag to the OAM communication The figure below shows a Telnet session in which the command tools vlan is used Figure 26 A Telnet Session with the tools vlan Command Configuring VLANs aggregation and Interface Separation are described in Configuring Operating the Media Gateway on page 101 ...

Страница 89: ...global IP addresses can be accessed To ping the SC boards from the PC using Windows take these 2 steps 1 Using a Command window at the command prompt enter ping Global IP address of an SC board A response should be received Note If the Ping has not received the proper response check the physical connections to the network 2 Using Telnet access each SC board and run the command tools d The Analytic...

Страница 90: ...90 Installation Operation Manual Avaya G860 Media Gateway Reader s Notes ...

Страница 91: ...rrupt the operation of the Active SC board To create an offline backup file for the SC software take these 8 steps 1 Connect to the Active SC board using Telnet Refer to Section 9 4 on page 72 2 At the prompt type tools tg bk and press Enter The backup sequence is activated sc1 tools tg bk 3 Two backup types are offered Type 2 and press Enter for the full backup The complete software installation ...

Страница 92: ...004 part of name of the file The File name must end with the extension tar 6 Press Enter The backup file is created Backup file name Project backup tar Project backup_02_12_2004 tar Create backup file Project backup_02_12_2004 tar Execute tar cvf Project backup_02_12_2004 tar Project 7 The full list of all of the software installation and configuration elements are listed until the backup file cre...

Страница 93: ...nd press Enter SC software supports 2 backup types 1 Database Backup Backs up only configuration database Works fast and produces small backup files however it cannot be restored if software installation is broken or destroyed 2 Full Backup Backs up complete software installation including configuration database Works slow and produces large backup files however it is able to restore all software ...

Страница 94: ... begins Backup file name Project backup tar Project backup_02_12_2004 tar Restore backup file Project backup_02_12_2004 tar Execute tar xvf Project backup_02_12_2004 tar Project 9 The full list of all of the software installation and configuration elements are listed until the restore procedure is complete 10 Repeat steps 1 to 10 for the second SC board 11 Startup the system either using the EMS r...

Страница 95: ...C825 Do NOT stare directly into the beam as this can damage your eyesight Care in Handling Fiber Optic Cabling When handling the fiber optic cables be sure to implement the following points Excessive bending of the Fiber Optic Cable can cause distortion and signal losses Ensure the minimum bending radius recommended by the Fiber Optic Cable supplier Maximum Fiber Optic Cable length for multimode f...

Страница 96: ...le management guides Connection to the IP network is established Table 36 IP Separation and ES 6600 Port Allotment IP Interface Separation Port Allotment One IP Interface OAM Control Media 20 Two IP Interfaces OAM Control Media 18 20 Two IP Interfaces OAM Control Media 18 20 Three IP Interfaces OAM Control Media 18 19 20 11 2 Connecting the PSTN STM 1 OC 3 Configurations future 11 2 1 1 Connecting...

Страница 97: ...N interface take these 2 steps 1 On a TPM RTM HA connect twin single mode fiber optic cable with LC type plugs to the PSTN transceivers marked 1A in the PSTN Group 2 Connect twin fiber optic cable with LC type plugs to the PSTN transceivers marked 1B in the PSTN Group 11 3 Connecting the T3 PSTN Interfaces Each T3 PSTN interface port is an SMB connector with Tx and Rx transceivers To connect the P...

Страница 98: ...re rated for 2A at 30V A maximum gauge of 20 AWG for standard copper wire may be used To connect the contact relays to Telco alarm equipment take these 6 steps 1 Check the equipment to be connected 2 Open the screws that connect the terminal block to the PCB s connector 3 Unplug the terminal block 4 Select one of these two methods to connect the relays of both SA RTMs either using normal logic or ...

Страница 99: ...on Diagram Normal Logic Connection SA RTM slot 2 TELCO Alarm Equipment SA RTM slot 1 COM COM NO NO NO COM Figure 29 Inverse Logic Alarm Connection Diagram SA RTM slot 2 TELCO Alarm Equipment Inverse Logic Connection SA RTM slot 1 COM COM NC NC NC COM 6 Plug in the terminal block into the PCB connector ...

Страница 100: ......

Страница 101: ...ds as well as a proprietary Management Information Base MIB It allows the provisioning of every parameter existing in the system For users who chose to operate the Avaya G860 Media Gateway without the EMS information on getting started with MIBs is available in Appendix Getting Started with MIBs on page 207 In addition refer to the MIB browser user documentation 12 1 About the EMS The EMS enables ...

Страница 102: ...MS on page 101 as needed Note 2 When the Avaya G860 Media Gateway is accessed in the EMS for the first time the Avaya G860 Media Gateway is set as locked and after you complete the basic configuration you unlock the Avaya G860 Media Gateway When making any modifications after that you must first lock the component whose parameters are to be modified and then after you have made the changes unlock ...

Страница 103: ...okmark not defined 10 Add the redundant Media Gateway board according to the Adding Media Gateway Boards to an Avaya G860 Media Gateway System on page Error Bookmark not defined 11 Right click on the redundant board and select Maintenance and Make Board Redundant 12 Configure the board to act like one of the other Media Gateway boards installed 13 Configure the redundancy parameters 14 Verify that...

Страница 104: ...The configured uplinks are defined according to the Interface separation and links aggregation configuration In case of an Internal F Link fault both ES boards are color coded for Major severity The Avaya G860 Media Gateway sends alerts for each ES action that can degrade the system connectivity and prevent switch over to the redundant ES in the event of fatal connectivity problems 12 2 1 Link Sta...

Страница 105: ... for 3 subnets for configuration between OAM Media and Control Note The number of VLANs is greater or equal to the number of subnets To configure the Subnets and IP addresses take these 3 steps 1 On the MG Status screen of the EMS showing a graphic representation of the Avaya G860 Media Gateway click the Properties link The Media Gateway Parameters Provisioning screen appears 2 In the Parameters l...

Страница 106: ...port in another part of the network you can configure the new port to be in the VLAN of the moved device If the end node device is VLAN aware the port automatically forwards the packets to the proper location No reconfiguration is required When working within VLAN each Ethernet frame in the VLAN is marked with VLAN ID tag The VLAN ID may be carried in the same frame itself when the frame has been ...

Страница 107: ...ached The following rules should be followed when working with VLANs enabled 1 No more then one untagged VLAN on the same interface 2 Number of interfaces number of VLANs 3 If number of interfaces equals to number of VLANs all tagged untagged permutations are valid 4 The OAM VLAN ID must be different from the Media VLAN ID 12 4 1 1 Defining VLANs Using the appropriate table in Defining IP Paramete...

Страница 108: ...n of VLANs For defining these separate interfaces the following combinations can be configured One Interface four options One VLAN for OAM Control and Media Two VLANs One VLAN for Control and Media one VLAN for OAM Two VLANs One VLAN for OAM and Control one VLAN for Media Three VLANS One VLAN for OAM one VLAN for Control one VLAN for Media Two Interfaces four options Option 1 two VLANs Control Med...

Страница 109: ...Interfaces and VLAN 802 1 p q screen appears 3 For Media Aggregation Enable change the value to those 2 or 3 links to be aggregated together according to the number of the aggregated links in the trunk Generally the bandwidth calculation in the Avaya G860 Media Gateway TPM system dictates number of aggregated links for external connectivity of the media traffic 1 3 boards no need of aggregation 3 ...

Страница 110: ... Class name is assigned per Protocol group The same assignment is relevant to all of the protocols in the Protocol group Table 37 DiffServ Class Name and Protocol Group Assignments Tolerance to Protocol Group Target Applications and Services Loss Delay Jitter Premium Telephony service like RTP media T 38 Fax over IP Lawful Intercept or Control protocols Very Low Very Low Very Low Platinum Used for...

Страница 111: ...SH Protocol Version 2 Supported encryption algorithms AES 128 BLOWFISH 3DES Supported authentication algorithms SHA1 MD5 User password authentication on each login After you have configured the secure mode in the Avaya G860 Media Gateway use an SSH client for subsequent connects to the SC board An example of an applicable SSH client is PuTTY found at http www putty nl download html 12 8 3 Avaya G8...

Страница 112: ... option 2 in install pl script The procedure is similar to the one described above 12 8 3 3 Enable Secure Mode Examples The following is an example of a System Configuration with an enabled Security mode System configuration Keyboard shortcuts ENTER leave default parameter value return to previous parameter Ctrl C abort configuration script Global SC IP Address 10 7 9 242 Master SC IP Address 10 7...

Страница 113: ... 7 13 94 EMS Server IP Address 10 7 6 8 NTP Server IP Address 0 0 0 0 Enable Security 1 yes EMS IKE Pre Shared Key SC Root Password SNMP Read Community SNMP Write Community Product Type 2 mediant5000 Start configuring y n y Update etc inet inetd conf file Make backup of modified file etc inet inetd conf Update etc inet services file Make backup of modified file etc inet services refresh INET daemo...

Страница 114: ...opied from the Primary SC 5 Reboot both SC boards 12 8 3 5 Software Re Installation Secure Mode may be disabled during software re installation option 2 in install pl script The procedure is similar to the one described above 12 8 3 6 Disable Secure Mode Examples The following is an example of a System Configuration with a disabled Security mode System configuration Keyboard shortcuts ENTER leave ...

Страница 115: ...ld as needed To modify a field click on the field a In the Profile Name field enter a unique profile name b In the IKE Pre Shared Key field enter a value The value is hidden and asterisks appear in the field Note Be sure to keep a record of the assigned Pre Shared Keys in a secure location c From the IKE Encryption dropdown list select one of the following any auto negotiates with the other equipm...

Страница 116: ...ndant board must be accompanied by the Redundant Standby Media Gateway RTM behind it TPM RTM HA for TPM The EMS displays the activity status of the board according to a color code The board status is indicated by two color areas slot status and board activity status Board activity status is indicated by the background color of the board It can represent Active or Redundant status The slot status i...

Страница 117: ...tchover parameter default is Enabled The parameter actually enables or disables the Media Gateway board switchover protection feature When this parameter is disabled the Media Gateway board is reset upon failure only and functionality is not switched to the redundant board no matter if it is set for hot or warm redundancy Media Gateway Board Level Parameter name Protection Required The Protection ...

Страница 118: ... Switch boards you are notified by the operational info alarm trap issued from the Active SC announcing the message Network port 0 failed start using network port 1 In addition the Ethernet Switch board is displayed as yellow indicating the appropriate suspect severity To switch the boards to their default positions via the EMS right click on the now Redundant but initially Active Ethernet Switch ...

Страница 119: ...the clock reference at the board level in the EMS select a board and in its board parameters provisioning screen set the Non Mode Clock Source In the EMS in a board s Clock Parameters Provisioning screen the Clock Reference Configurations parameter displays at which level Gateway or Board the Clock Synchronization mode is set 12 10 2 Operating in TP6310Mode For TPM T3 System Configurations When wo...

Страница 120: ...a user agent or another proxy and acts on behalf of the user agent in forwarding or responding to the request A proxy server typically has access to a database or a location service to aid it in processing the request determining the next hop A proxy can use any number of types of databases to aid in processing a request Databases could contain SIP registrations presence information or any other t...

Страница 121: ... directly to the destination addresses according to the standard SIP routing rules or permanently to send all messages to the Proxy In this case all SIP messages and responses are sent to the Proxy server When the Proxy is not used for the message routing the Avaya G860 Media Gateway allows sending INVITE messages generated as a result of Transfer or Redirect directly to the URI according to the R...

Страница 122: ...s not defined the parameter UserName is used instead The sipgatewayname parameter defined in the ini file or set from the Web browser can be any string Some Proxy servers require that the sipgatewayname in REGISTER messages is set equal to the Registrar Proxy IP address or to the Registrar Proxy domain name REGISTER messages are sent to the Registrar s IP address if configured or to the Proxy s IP...

Страница 123: ...first lock the component whose parameters are to be modified and then after you have made the changes unlock it 12 13 1 Performance Monitoring The EMS offers two view types of Performance Monitoring Real Time View Historic View For more details refer to the Performance Monitoring section in Element Management System User s Manual Document LTRT 910xx 12 13 1 1 Real Time Performance Monitoring Real ...

Страница 124: ...gure below Figure 30 Display Real Time PMs 2 Select the frame you prefer a new frame or an already existing frame to view the performance graph refer to the figure below and click OK Figure 31 Selecting the Frame to Display the Graph of the Entity Performance Users can open up to five separate real time graphs in the same client application In each graph you can simultaneously view up to 5 paramet...

Страница 125: ...24 hours of sampled data the detailed table is summarized For each entity and parameter the start and stop summary time is stored and the average minimal and maximal value is displayed Detailed data is stored for a period of 7 days in intervals of 15 minutes Historical data is stored for 30 days in intervals of 24 hours Data storage time is dependent on available disk space 12 13 2 Adding addition...

Страница 126: ...take this step On the MG Status screen of the EMS showing a graphic representation of the Avaya G860 Media Gateway double click on a fan tray module area The Fans list appears displaying the list of fans in the selected module and their speeds The maximum speed of the fans in the FM fan tray module large fans at 4900 5500 RPM small fans at 5000 5600 RPM The maximum speed of the fans in the FMR aux...

Страница 127: ...the command tools tg p A list of SC software processes appears Refer to the example below SC 1 tools tg p LIST OF SC SOFTWARE PROCESSES 6559 tg_megac tg_megaco 6558 tg_core tg_core 6557 tg_bootp tg_bootp 6556 tg_tpncp tg_tpncpif 6555 tg_sat tg_sat 6554 tg_mgcp tg_mgcp 6553 tg_hbg tg_hbg 6552 tg_hbm tg_hbm 6531 tg_watch Project bin exe tg_watchdog The following is an example of the list of SC softw...

Страница 128: ...128 Installation Operation Manual Avaya G860 Media Gateway Reader s Notes ...

Страница 129: ...can damage electronic equipment To reduce the risk of damage due to electrostatic discharge when installing or servicing electronic equipment use anti static earthing straps and mats Before removing or replacing boards from the chassis take these 2 steps 1 Locate the ESD electrostatic discharge connections on the Avaya G860 Media Gateway chassis Refer to the diagrams in Front and Back Views of the...

Страница 130: ...e blank panel without the baffle in the rear of the chassis only Note 3 See the current release notes for more information before changing any configuration 14 1 2 1 Slot Cover Requirements Figure 32 Baffled Blank Panel for Front Slots Figure 33 Blank Panel for Rear Slots CAUTION Board types are assigned to specific slots The midplane behind the slots contains keys that are specific to the board t...

Страница 131: ...n Installing the SC Software on page 144 Note 1 In a Redundant configuration should a primary SC board fail before a faulty secondary SC board has been replaced replace and configure the SC board to be initially active first and then do the second SC board For the primary SC board use the procedures in Simplex Configuration Installing the SC Software on page 144 and to restore your custom configur...

Страница 132: ...he SC board Each version of Avaya G860 Media Gateway software requires a specific version of Solaris OS which is configured specifically for full Avaya G860 Media Gateway hardware compatibility and high performance When it becomes necessary to re install the Solaris OS on an SC boards it is important to use the Solaris OS installation image provided by Avaya Avaya G860 Media Gateway version 3 2 so...

Страница 133: ...er EMS Server8 cdrom cdrom0 root install The Install image creates a jumpstart directory that is shared over the network 14 2 1 3 Installing the Solaris 9 OS on the SC board To install the Solaris 9 OS on the SC boards take these 9 steps 1 On SC board connect to the RS232 console 2 Identify the SC hostname IP address and MAC address of the SC board Sample values are shown in red in the example bel...

Страница 134: ...are Follow the example below ok setenv auto boot false ok reset all ok flash update pci 1f 0 pci 1 ide 2 disk 0 0 a firmware bin ok setenv legacy support false ok setenv auto boot true ok setenv diag switch false Note The command setenv legacy support false may fail on certain boards If this occurs ignore the failure and proceed with the next command Remain at the OBP level do not reboot the board...

Страница 135: ... SC Software To copy the SC software take these 4 steps Via the IP network connect to the SC board from the PC terminal using Telnet Note 1 Ensure that the PC terminal you are using is connected to the same IP network to which the Avaya G860 Media Gateway is also connected Note 2 If for any reason you cannot establish a connection via the IP network you can alternatively connect via one of the RJ ...

Страница 136: ...t install pl 200 PORT command successful 150 ASCII data connection for install pl 226 Transfer complete 42477 bytes sent in 0 0082 seconds ftp bin 200 Type set to I ftp put sc_software tar gz 200 PORT command successful 150 Binary data connection for sc_software tar gz 226 Transfer complete 46615040 bytes sent in 5 9 seconds ftp put proper cfg file name 226 Transfer complete ftp quit 14 2 5 Redund...

Страница 137: ... information this takes around 10 sec done Found the following Avaya installation package Avaya Mediant Stretto Media Gateway Version 3 0 25 4 When you are asked if you want to install enter y Do you want to install y n n y Unpack version specific installation script unpacking install pl file this takes around 10 sec done Run version specific installation script 5 Enter number 2 to start the insta...

Страница 138: ...13 80 7 You are prompted to enter the root password Enter the password you set in Basic SC Configuration on the First SC Board on page 78 root 10 7 13 80 s password PASSWORD The System ini parameters are copied from the Active Master SC and a summary of the configuration is displayed The following is an example only SystemParams ini 100 5421 00 00 Configuration Summary Global SC IP Address 10 7 14...

Страница 139: ...daemon Configure FTP Permit root login to FTP Make backup of modified file etc ftpd ftpusers audcftp user is already defined Configure SSH Permit root login to SSH Make backup of modified file etc ssh sshd_config Refresh SSH daemon Update SNMP configuration files Make backup of modified file etc srconf agt snmpd cnf Update SNMP community strings Update etc inet services Make backup of modified fil...

Страница 140: ...nlogs job and statistics job to crontab reload crontab configuration Update root password Tune up tmp filesystem Make backup of modified file etc vfstab Make backup of modified file etc nsswitch conf Make record of new file etc resolv conf Extract custom configuration files Copy Project Downloads cmp_files TP1610 cmp files to tftpboot Copy Project Downloads baseinifile_files TP1610 ini file to tft...

Страница 141: ...o so Do REBOOT now n y y y 10 You are prompted to confirm the reboot command Enter Y or accept the default setting to do so Are you sure n y y y 14 2 6 Simplex Configuration Installing the SC Software To install the SC software take these 16 steps 1 Follow the installation scripts shown in the example below 2 Log on using the default username root and password root 3 Enter the install pl command T...

Страница 142: ... got new system from Avaya it is already installed Just run configure option Do you want to install y n n y Install SC Software Uninstall SC software Back up Project binaries and configuration Restore system configuration files Remove old Project directories Clean up tftpboot directory Extract all files from TAR Tune up extracted SC files Create first time installation flag Create directory struct...

Страница 143: ...o install either the Master or Secondary SC Type 0 to select the Master SC If you install Master SC you should configure it now If you install Secondary SC you should copy configuration from Master SC Do you install Master or Secondary SC 0 Master 1 Secondary 1 0 The following appears System configuration Keyboard shortcuts ENTER leave default parameter value return to previous parameter Ctrl C ab...

Страница 144: ...pt to enable security enter 1 To disable Security enter 0 For more information refer to About Security in the Avaya G860 Media Gateway on page 110 Enable Security 0 no 1 yes 0 12 You are prompted to enter the SC Root Password and the passwords for SNMP Read and Write Community To leave a password unchanged press Enter To change a password enter the new password It must be at least 4 characters You...

Страница 145: ...Community Product Type 2 mediant5000 14 You are prompted to start the configuration Enter y or accept the default setting to do so Start configuring y n y y The following appears Update etc inet inetd conf file Restore file etc inet inetd conf from the backup Update etc inet services file Restore file etc inet services from the backup refresh INET daemon Update root password Disable IPSEC configur...

Страница 146: ...ed reload crontab configuration Remove startup scripts of sendmail Make backup of deleted file usr lib sendmail Make backup of deleted file etc init d sendmail Make backup of deleted file etc rc2 d s88sendmail Configure syslog daemon Update etc syslog conf file Make backup of modified file etc syslog conf Make record of new file var log local0 Make record of new file var log daemon Make record of ...

Страница 147: ...on Active SC after reboot IF CONFIGURATION IS DONE OK YOU MUST REBOOT THE SC Even though this configuration is for a Simplex configuration where only one SC board is present the following is displayed IMPORTANT If you have second SC DO NOT REBOOT this SC until installation of second SC already done Reboot both SCs at the same time 15 You are prompted to reboot Enter y or accept the default setting...

Страница 148: ...removing the board and wait for the Hot Swap blue LED to light indicating that the board can be removed 4 Pull on the two ejector injector latches and ease out the board from the slot To insert a Media Gateway board into the chassis take these 8 steps 1 Hold the board Horizontal 2 With the black ejector injector latches in the open pulled out position insert the board in the slot aligning the boar...

Страница 149: ...ut position insert the board in the slot aligning the board on the groves on each end 3 Ease the board all the way into the slot until the ejector injector latches touch the chassis 4 Press the two black ejector injector latches on both ends inward toward the middle until you hear a click 5 Fasten the screws on the front plate of the board to secure the board to the chassis and to ensure that the ...

Страница 150: ...undant TPM board according to the customer s requirements The corresponding RTMs are located in the rear cage of the Avaya G860 Media Gateway Media Gateway in the corresponding slot In less than a full configuration place boards from slot 10 to 7 adding boards from the highest slot number to the lowest slot number Unused slots must be covered using the appropriate blank panel Refer to the Board As...

Страница 151: ...with the other boards 4 Press the two black ejector injector latches on both ends inward toward the middle until you hear a click 5 Fasten the screws on the front plate of the board to secure the board to the chassis and to ensure that the board has an earth connection to the chassis 6 Replace the cable connections 7 From the EMS perform a manual switchover so that the SC with the newly installed ...

Страница 152: ...t Management System User s Manual Document LTRT 910xx 2 Remove the cables attached to the Ethernet Switch board 3 Unfasten the screws on the plate of the board 4 Gently pull the two black ejector injector latches on both ends outwards not actually removing the board and wait for the Hot Swap blue LED to light indicating that the board can be removed 5 Pull on the two ejector injector latches and e...

Страница 153: ... In the EMS lock the Ethernet Switch board of the RTM to be replaced For more information refer to the Element Management System User s Manual Document LTRT 910xx 2 Remove the connected cables 3 Unfasten the screws on the plate of the board 4 Pull on the two ejector injector latches and ease out the board from the slot To insert an Ethernet Switch RTM into the chassis take these 9 steps 1 Hold the...

Страница 154: ... Ethernet Switch board note that this configuration does not survive reset hence you should immediately proceed to the software installation as described above ip config sw0 10 1 1 35 4 Repeat the lock unlock procedure on the ES in the EMS 14 7 Power Supply Module Replacement To remove a faulty power supply take these 4 steps 1 Unfasten the 4 screws on the plate of the power supply to be removed 2...

Страница 155: ...tray module s handle outward by 2 cm 4 Wait for the fans to stop rotating and then remove the fan tray completely To insert a replacement FM fan tray module take these 5 steps 1 Insert the fan tray module into its slot until the front panel is flush with the chassis plate 2 Fasten the screws at both ends of the fan tray module 3 Verify that the fans are functioning correctly by putting your left h...

Страница 156: ...ver the grill on the right side of the Avaya G860 Media Gateway chassis when facing the front cage Your right hand should feel the air blowing reasonably strongly out of the Avaya G860 Media Gateway 6 Check the EMS indicators to verify that alarm regarding the faulty fans is now cleared and that the Auxiliary Fan Tray Module is functioning properly 7 Check the EMS Fan Speed settings are within the...

Страница 157: ...r It is imperative the chassis not remain without the fan tray unit for more than 60 sec To remove the air filter take these 2 steps 1 Remove the fan tray unit refer to Replacing the Fan Tray Unit 2 With your fingertips grasp the inside of the steel frame of the air filter and pull it out of its slot It should slide out relatively easily If it does not pull with slightly more force Figure 35 Air F...

Страница 158: ...nd over the grill on the left side of the Avaya G860 Media Gateway chassis when facing the front cage and your right hand over the grill on the right side Your left hand should feel a reasonably strong suction of the air drawn in by the fan Your right hand should feel the air blowing reasonably strongly out of the Avaya G860 Media Gateway ...

Страница 159: ... both SC boards are up and running The software upgrade process upgrades software on all of the boards in the chassis System Controller boards Media Gateway boards Ethernet Switch boards The gateway continues its operation without interruption during a software upgrade of the SC software However calls are dropped during an upgrade of Media Gateway boards To minimize impact on media gateway service...

Страница 160: ...d party server For details on performing a backup refer to SC Software Backup Restore Procedures on page 91 15 3 Performing the Online Software Upgrade This section describes an Online Software Upgrade in a typical Media Gateway configuration when 2 SC boards are available If your system has only 1 SC board refer to Online Software Upgrade Wizard on a Simplex Configuration Before starting Online S...

Страница 161: ...e Details option the MG Information dialog box appears Figure 36 MG Information Dialog Box 3 In the Telnet Password field change the password to match the current configuration of your Avaya G860 Media Gateway 4 Click OK 15 3 2 Starting the Online Software Upgrade Wizard To perform a software upgrade take these 4 steps 1 In the MG Tree to the left select the Media Gateway on which maintenance acti...

Страница 162: ...elect the Sw Upgrade option The Files Management screen appears Figure 38 Files Management Screen 4 In the Files Manager screen select the version file to be upgraded to and loaded to the device and click OK You are asked to confirm you command The Software Upgrade Wizard opens and guides you through the process ...

Страница 163: ...lowing parameters Graceful Shutdown Period sec the amount of time allowed for calls to end before performing the upgrade on an individual Media Gateway board During this period the Media Gateway board accepts no new calls and at the close of this period any remaining calls are dropped You can enter any amount of time in seconds for this parameter with a default of 30 sec Upgrade Media Gateway boar...

Страница 164: ...When upgrade on this board is completed a switchover action occurs which exchanges Active Standby status between the SC boards The secondary SC board becomes the Active board and the primary SC board becomes the Standby SC board Thereafter the secondary SC board now the Active SC board manages the upgrade process of the Media Gateway boards refer to the figure below Following the upgrade of the Me...

Страница 165: ...an pause after the first Media Gateway board is upgraded or after each Media Gateway board is upgraded and verify that the process is successful With the first Media Gateway board as well as the Active SC board upgraded you can perform extensive testing of the new software in order to decide either to continue with the Upgrade or to Rollback to the previous software configuration 15 3 2 4 Upgradin...

Страница 166: ...nish The last Software Upgrade Wizard screen states that the upgrade process has finished Note Perform a full software configuration backup as per SC Software Backup Restore Procedures on page 91 to assure backup availability should it be required later 15 4 Rollback At any time during an upgrade process users can perform a rollback to the previous software configuration by pressing the Cancel but...

Страница 167: ... these 13 steps 1 Close the EMS Upgrade Wizard screen 2 Connect to both of the SC boards through Telnet or the RS 232 port 3 On each of the SC boards if the OS is currently running i e Telnet works and or a login prompt appears log in and stop the SC software on both SC boards by typing tools tg dn Press Enter client208 tools tg dn 4 If there is no Telnet connection an SC board take these 2 steps ...

Страница 168: ... is missing client208 tools tg rs 2 tools Permission denied 8 If the tools script is missing extract the tools script from the backup file by typing tar xvf backup_file Project scripts tools Press Enter client208 tar xvf backup_file Project scripts tools 9 At the prompt run the extracted tools script by typing Project scripts tools tg rs 2 Press Enter client208 Project scripts tools tg rs 2 10 To ...

Страница 169: ...Primary SC board has been removed media gateway service is not restored until the rollback of the Secondary board is completed The system is in simplex configuration dependent upon only one SC board 12 Rollback the Media Gateway boards The Media Gateway boards are automatically reset by the SC software and rolled back to the previous software version You are not required to take any additional mea...

Страница 170: ...170 Installation Operation Manual Avaya G860 Media Gateway Reader s Notes ...

Страница 171: ... principles have been formulated to guide you in troubleshooting the system Try connecting to the Media Gateway via the IP network Locating the fault this way could save you a visit to the site or save you time when you arrive Use a systematic process of elimination to try and identify the source of the problem Ask the users of the Media Gateway to describe the nature of the problem they have enco...

Страница 172: ...e if it is DC or AC power supply DC power supply has a connector If it is a DC power supply check the DC power connection Connect all the power wires and turn on the appropriate switches If it is an AC power supply check that the AC power is connected and that the AC switch is on Connect the AC power and turn on the switch Gateway operation is silent Fans problem Check the airflow from the ventila...

Страница 173: ...teway MIB browser setting problem Ping the Media Gateway If it responds check the community stream settings on the MIB browser Verify that you re working with SNMP V1 or V2 Media Gateway IP settings Connect the Console to the SC board Run the configuration utility to set the IP settings On an ES board no LED is turned on The uplink of the board is not connected Connect the uplink Reset the board A...

Страница 174: ...ES board is switched over there is no connection to the SC Each ES board is connected to a separate external router and the routers are not connected by VRRP protocol When one switch stops working all external networks must go through the other external router This is possible only if the external routers are connected and are using VRRP protocol The switchover from a failed TPM board to the redun...

Страница 175: ...ty and Severity as described in the Examples below The Avaya application performs as a Syslog client Messages currently Error Reports events generated by the Avaya application are sent via UDP and IP to a Syslog server application Currently there are 5 error levels reported by the Syslog client Examples Emergency level message 128 sctp socket setsockopt error 0xf0 File sctp cpp Line 453 Warning le...

Страница 176: ...GW Switchover Alarm 19 Configuration Change Configuration Change For the User s convenience all alarms generated by Media Gateway have the same standard structure which includes the following fields AlarmUniqueId the unique ID of alarm according to the MIB AlarmTitle the name of alarm ID in more readable form AlarmSource a text field indicating a source of generated alarm It could be either a logi...

Страница 177: ...s state chassis activities and health e g chassis over heating Media Gateway board switch over trunks or other system s elements failure etc This is the only type of log information that should be normally and directly accessed by user in order to obtain system s operational information For more information on the trap log refer to the EMS Alarm Guide Document LTRT 946xx 16 5 1 2 Avaya Technical S...

Страница 178: ...ask cleanlogs deletes the log files according to the limitations in 10 minute intervals The file names in the directory are current the current opened log file serial number of the file the older closed log file The following Log file management options can be configured by Avaya technical support only Project bin Sysparams ini logger section num_of_files the number of log files to keep per subjec...

Страница 179: ...m for analysis the following command should be executed at SC level perl Project scripts sc_collect pl current This command collects all current log files at SC board level and core file It generates the sc_collect_current tar gz file to be transferred for analysis Example M5K CALAMA M perl Project scripts sc_collect pl current Collecting debug data mode current to file sc_collect_current tar gz D...

Страница 180: ... placed under the root directory default value is sc_collect_ option Sometimes the customer is asked to collect the log information from both the active and redundant standby SC boards For example it could be required for analysis of problems involving an SC board switch over In this situation the perl Project scripts sc_collect pl current commands should be executed on both the active and redunda...

Страница 181: ...ddress of default router Is the IP address correct 16 9 Information Needed when Contacting Technical Support When contacting Avaya Technical Support refer to the title page or last page of this manual for detailed contact information send the following information 1 A detailed description of the problem 2 Any information obtained from the troubleshooting process suspected component etc 3 Informati...

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Страница 183: ...l Media Processing IP Transport VoIP RTP RTCP per IETF RFC 3550 and RFC 3551 DTMF MF Transport DTMF MF RTP Relay per RFC 2833 Mute Transparent transfer in coder as voice All voice processing features are supported simultaneously on all ports Dynamic Network Jitter Buffer with reordered RTP packets correction Voice Processing Transcoding of a G 711 RTP stream to any Low Bit Rate Coder RTP stream us...

Страница 184: ... UPDATE SIP Transport UDP TCP SIP Security IPSec and IKE RFC 3711 of Control and O M protocols Supported SIP RFCs RFC 3261 SIP RFC 3262 Reliability of Provisional Responses RFC 3263 Locating SIP Servers RFC 3264 Offer Answer Model RFC 3265 SIP Specific Event Notification RFC 2327 SDP RFC 2782 A DNS RR for specifying the location of services RFC 3323 Privacy Mechanism RFC 3325 Private Extensions to...

Страница 185: ...aft mahy sipping signaled digits 01 txt Signaled Telephony Events in the Session Initiation Protocol Security IPSec ESP with IKE pre shared key IPSec is supported for the management traffic to EMS NMS OSS Encryption algorithms DES and 3DES Hash types SHA1 and MD5 Media Gateway Boards Based Firewalls Up to 20 Filtering criteria rules according to Source IP address and subnet Destination port range ...

Страница 186: ...nagement and provisioning with standard SNMP v2 interface Maintainability All shelf modules are hot swappable including boards Power Supply modules fans and Alarm modules Redundancy Scheme CPUs Ethernet switches Active Standby Power supplies fans Load Shared Media Gateway boards N 1 Diagnostic Automatic and Manual HW and SW Diagnostic BIT Built in Test fault detection heart beat chassis sub system...

Страница 187: ...S 310 C in 19 inchrack Midplane PICMG 2 16 cPCI Packet Switching Backplane cPSB PICMG 2 1 cPCI hot swap specification PICMG 2 0 cPCI specification Power TPM system configurations 48 V DC Feed with 3 DC Power modules Cooling Easily replaceable fan trays filter Regulatory Compliance Telecommunication Standards FCC part 68 TBR4 and TBR13 Safety and EMC Standards UL 60950 FCC part 15 Class A CE Mark E...

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Страница 189: ...utility is used to generate the following Process Call Progress Tones file s Process Voice Prompts file s Process CAS Tables Process VXML file s Process Prerecorded Tones file s Process Encoded Decoded ini file s Process Coder Description file s The files constructed using these utilities can be used with the EMS Some files may have usage restrictions as described under their usage information 18 ...

Страница 190: ...s button The Voice Prompts window appears Figure 44 Voice Prompts Screen 3 Select the raw Voice Prompt files created in Step 1 step either by one of these actions a Click the Add Files button in the upper right corner The Add Files window appears Refer to the figure Select Files Window below Navigate to the appropriate file ...

Страница 191: ...utton To close the Add Files window click the Exit button Press the Esc key to cancel changes Figure 45 Select Files Window Figure 46 Voice Prompts Window with wav Files b From any location on the PC select the appropriate files and drag drop them into the Voice Prompts window ...

Страница 192: ...utton Press the Esc key to cancel changes You are returned to the Voice Prompts window 10 The default Output file name is voiceprompts dat You can modify it Or Use the Browse button to select a different Output file Navigate to the desired file and select it The selected file name and its path appear in the Output field 11 Click the Make File s button to generate the Voice Prompts file The Progres...

Страница 193: ...Name if desired 8 For troubleshooting purposes you can click a check into the Output state names to file checkbox This activates the file name field in which the default file name TableState Names txt appears You can modify the file name if desired The file is located in the same directory as the Using file and Output file designated above 9 If the file to be converted uses the new table header un...

Страница 194: ...tension 5 Click the Make File button The VXML file is generated and placed in the same directory as shown in the Output File field A message box informing you that the operation was successful indicates that the process is completed 18 1 4 Process Prerecorded Tones File s To generate a Prerecorded Tones file take these 11 steps 1 Prior to the conversion process the user should prepare the appropri...

Страница 195: ...same and double click or right click on it The File Date window appears Figure 51 File Data Dialog Box 5 From the Type drop down list select a Ring parameter type 6 From the Coder drop down list select a coder type G 711 A law_64 G 711 μ law or Linear PCM 7 In the Description field enter a description optional 8 In the Default field enter the duration in msec 9 Click the Exit button Press the Esc ...

Страница 196: ...ucting one refer to Adding the Auxiliary Files on page Error Bookmark not defined Execute DConvert exe and click the Process Encoded ini file s button The Encoded ini file s window appears Figure 52 Encoded ini File s Screen 2 In the Encode ini File s area click the Select File Button A Browse window appears 3 Navigate to the desired location and select the ini file to be encoded This automaticall...

Страница 197: ...e is generated and placed in the same directory as shown in the Output File field A message box informing you that the operation was successful indicates that the process is completed Note The decoding process verifies the input file for validity Any change made to the encoded file causes an error and the decoding process is aborted 18 1 6 Process Coder Table File s Coder description files are use...

Страница 198: ...otocols take these 3 steps 1 Rename the PSTN trace binary file to CASTrace0 dat 2 Copy it to the same directory in which the translation utility CAS_Trace exe is located 3 Run CAS_Trace exe no arguments are required The text file CASTrace0 txt is created Generating a Trace audit Text File for ISDN SS7 ATM Protocols To generate a readable text file out of the binary trace file when using ISDN SS7 A...

Страница 199: ...ss TrunkTraces and choose the Trunk Traces tab e g http 10 8 8 101 TrunkTraces 7 Use the user and password which is the same for the unit 8 In the Web page set the trace level of each trunk 9 Enable the trace via the Web 10 Determine the UDP port the same as in step 3 11 Click the SUBMIT button The board starts to send the trace messages 12 In the UDP2File utility Refer to the figure below you sho...

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Страница 201: ... the Media Gateway using the MIB Compiler and MIB Browser take these 9 steps 1 Compile the Media Gateway s MIB 2 Save the compiled file 3 Set the IP address of the remote Media Gateway 4 Set the SNMP version V1 or V2 Note that the use of SNMP V2 allows use of the bulk operations for operation efficiency 5 Set the read and write community to public and private respectively 6 Load the compilation re...

Страница 202: ... result When working with a MIB browser a table of the slots is displayed Select the appropriate specific slot number 2 Verify the performed operation by reading tgSlotBoardType 3 In the MIB elements located in the following path tgConfig tgModule tgTPBoardTable tgTPBoardEntry Set the first MAC address of the board by setting tgTPBoardMACAddr1 first MAC address of the configured board the MAC addr...

Страница 203: ...o the Programmer s User Manual Document LTRT 914xx To modify the configuration of a Media Gateway board take these 4 steps with the MIB elements located under the following path tgConfig tgModule tgTPBoardTable tgTPBoardEntry 1 Lock the configured MIB section by setting the tgBoardActionType lock As a result When working with a MIB browser a slot Table of 22 slots is displayed Select the appropria...

Страница 204: ...ers that can be changed tgTrunkType to select E1 T1 J1 type tgTrunkFramingMethod to modify the framing type of the trunk tgTrunkLineCode to modify the line coding of the trunk 3 Verify the performed operation by reading the appropriate parameter 4 Unlock the locked section by setting the tgTrunkActionType unlock When working with a MIB browser a trunk Table of all gateway trunks is displayed Selec...

Страница 205: ... board from a chassis slot by setting tgSlotActionType removeBoard As a result When working with a MIB browser a table of the slots is displayed Select the appropriate specific slot number 2 Verify the performed operation by reading tgSlotBoardType to compare with the configured VoP board type at the selected slot number 3 Check that the board has been deleted by examining the moOperativeStateChan...

Страница 206: ...206 Installation Operation Manual Avaya G860 Media Gateway Reader s Notes ...

Страница 207: ...dia 5000 I the undersigned hereby declare that the equipment specified above conforms to the above Directives and Standards 11th February 2005 Airport City Lod Israel Signature Date Day Month Year Location I Zusmanovich Compliance Engineering Manager Safety Notices The protective earth terminal on the back of the Avaya G860 Media Gateway must be permanently connected to protective earth Industry C...

Страница 208: ...ou experience trouble with this telephone equipment contact Avaya Inc San Jose CA USA Tel 1 408 577 0488 Do not attempt to repair this equipment Facility Interface Code 04DU9 BN 04DU9 DN 04DU9 1KN 4DU9 ISN Service Order Code 6 0N USOC Jack Type RJ21X or RJ48C It this gateway causes harm to the telephone network the telephone company will notify you in advance that temporary discontinuance of servi...

Страница 209: ... that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and re...

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Страница 211: ...ntroller Software for the First Time 73 102 111 137 Configuring the IP Address of the ES Board Software 155 157 Configuring the NTP Server 74 Configuring the PSTN Interface 120 Configuring the SC Boards 75 Configuring the Subnets IP Addresses of the Media Gateway 105 Configuring the Telnet FTP Password of the Avaya G860 Media Gateway 165 Connecting DC Power 68 Connecting Power 6310 System Configur...

Страница 212: ...Board Redundancy 116 Media Gateway Board Replacement Procedure 151 MIBS and Provisioning Options 207 Midplane Keying 19 Modifying a Trunk Configuration 210 Modifying an Media Gateway board Configuration 209 Mounting the Chassis on a Rack 61 N NEW______Replacing the FPM 5K Advanced Fan Power Module 5000 6310 160 O Online Software Upgrade Overview 163 Online Software Upgrade Wizard on a Simplex Conf...

Страница 213: ...rade 163 Software Upgrade Rollback Troubleshooting 171 SSH 111 SSL TLS 111 Starting the Online Software Upgrade Wizard 165 Syslog Support 181 System Controller Panel Indicators Controls 31 T T3 6310 Board Panel T3 LED Indicators 26 Testing the Installed System 103 127 The Chassis 16 Troubleshooting 178 Troubleshooting for the Avaya G860 Media Gateway TP 6310 Configuration 178 Troubleshooting Strat...

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