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Avaya 5410 IP Phone User Manual

1. 19 05 09 5 Generate Report 9 09 09 I Report 44 A tool designed to assess whether a customer network is ready to support VolP calls Internet Protocol discovery visualization analysis and disply tool bundled with the ExpertNet Lite Assessment Tool and not supported as a standalone tool A more sophisticated Avaya tool for determining whether a customer network is ready to support VoIP calls It forexample can simulate higher call volumes than the ExpertNet Lite Assessment Tool Internet Control Message Protocol Internet Protocol Management Information Bases Open Shortest Path First routing protocol Public Switched Telephone Network Quality of Service Real Time Transport Protocol Round trip time Simple Network Management Protocol Transmission Control Protocol Time to live User Datagram Protocol Voice over Internet Protocol Network Voice Quality an estimate of the Mean Opinion Score of a call using packet level measurements End of Document 45 Glossary ExpertNet Lite Assessment Tool ExpertNet Discovery Tool ExpertNet VoIP Assessment Tool I CMP IP MI Bs OSPF PSTN QoS RTP RTT SNMP TCP TTL UDP VoIP NVQ
2. How long will a dataset remain on the server A Datasets are archived after approximately six months If this is not convenient or will interrupt your project please let the ELAT team know Q ELAT was not run in the network that it should have been Can I rerun ELAT with the same license file and same customer name A License files are valid for a maximum of 30 days As long as the license has not expired when ELAT is started it will run Q I need to rerun ELAT with the same customer at the same location Will the first dataset be overwritten A No We do not allow or support overwriting datasets All datasets are considered unique and stored separately irrespective of how many times ELAT has been run at a customer location Q How much traffic does ELAT create on a network A The ELAT Controller generates very little traffic Default settings in lt ELATControllerBaseDir gt config config xml are 1 Average number of pings second is 2 2 Maximum of 2 SNMP get requests second This is a default throttling parameter not an average value SNMP poll interval for each node is by default equal 60 seconds It means that if there are 10 SNMP polled nodes each of them will be polled every 60 seconds so there is a SNMP GET request issued to the network every 6 seconds in equal intervals Ping datagrams are 180 bytes SNMP PDU s can vary from about 100 bytes to a few kilobytes per request depending on the amount of information p
3. from http Support avaya com The installation typically takes less than 5 minutes For more detail about installing the Controller refer to Appendix A Installing the Controller and Test Agents Launch the Program After you have installed the ELAT Controller application and copied a valid license file to the config directory you can launch the ELAT Controller To launch ELAT select Start gt All Programs gt Avaya gt ExpertNet Lite Assessment Tool gt ExpertNet Lite Assessment Tool gt Controller The main window is displayed ExpertNet Lite Assessment Tool DEAR File Configuration Network Tests Measurements Views Window Help SEX 11 OF gt 8 9 E Network Paths View DE To Test Tracert DSCP Number Delay ms Endpoi yp Status Status Req Fwd Rin Of 03 Fwd Rtn_ Fwd Rtn Fwd Rtn IF Path Details View DEAR LocalTestplugService Service Avaya Traffic Simulator successfully started WebServerController Starting TinyWeb exe C Program Files AvayalELAT trafficSimulator 80 135 27 66 93 Launcher About to execute TinyWeb exe C Program Files Avaya ELAT trafficSimulator 80 135 AgentInitializer ExpertNet Lite Assessment Tool started on Tue Mar 04 10 02 31 2008 Configuring the ELAT Controller To run the ELAT Controller Configuration wizard select Configuration gt Modify Configuration You can review all the parameters and accept the defaults or change any parameter
4. or you want to add paths leading to subnets that could not be discovered select Add Ping Test item from the Network Paths menu or click the toolbar icon 18 19 Add Ping Test This dialog enables the user to add a ping test to any pingable device on the network Click on the icon and then on the control of interest to get more details To Endpoint Protocol UDP v V Path Tracerouting SNMP Polling as To Endpoint Host name or IP address of a device that you want to be an edge device of the new ping test path Protocol Select a protocol to discover and ping this path UDP is the recommended protocol Path Tracerouting Check this box if you want to use traceroute to discover and ping this path If the button is not checked only the edge device will be pinged With Traceroute The Controller collects Round Trip Time RTT data from ping paths by trace routing every path periodically This information is displayed in the Path Details View The SNMP statistics are collected only for ingress and egress interfaces of every router Without Traceroute The Controller collects RTT data from ping paths with traceroute by pinging every target directly The SNMP statistics are collected for all Layer 3 interfaces of the target device SNMP Polling Check this box if you want the ELAT Controller to collect SNMP statistics CPU and interface utilization for devices on the test path ExpertNe
5. Overview per path or target Delay Jitter Loss Ping Response CPU if SNMP data gathered Interface for most devices e Recommendations and technical information on VoIP 27 ExpertNet Lite Assessment Tool User Guide Overview Graphs Overview 192 168 1 20 to 192 168 1 254 01 25 2006 12 57 47 through 01 25 2006 13 57 48 75 80 mig 7 1 ITJ TI ee 50 25 ms SG SUN ae teit ads ee EE NE Ted ten 15 10 10 ay amp 13 05 13 10 13 15 13 20 13 25 13 30 13 35 13 40 13 45 13 50 13 55 ms j m nvo G 711 Min Max Avg Delay WMin Max Avg Jitter W Loss 100 packets e Overview chart is available per path or target e Delay and Jitter have maximum average and minimum values max and min are only in the overview chart e Average is over a 10 minute period 28 ExpertNet Lite Assessment Tool User Guide QoS Graphs Separate graphs displaying Delay Jitter and Loss are available for each target PATH AGENT 135 74 148 199 ROUTER IN 135 74 148 193 OUT 135 74 148 33 ROUTER IN 135 74 148 34 OUT 135 74 148 6 ROUTER IN 135 74 148 1 OUT 135 74 147 194 ROUTER IN 135 74 147 193 OUT J Delay 135 74 148 199 to 135 74 147 193 10 min avg 16 00 18 00 20 00 22 00 00 00 02 00 0400 06 00 08 00 10 00 12 00 1400 To 135 74 148 199 W To 135 74 148 193 To 135 74 148 34 To 135 74 148 1 To 135 74 147 193 Threshold 1860ms Jitter 13
6. devices as endpoints of a path A No you should avoid using network devices if at all possible as endpoints There are several reasons why this should be avoided e The goal of ELAT is to measure the entire path from where ELAT is deployed to where an IP phone hypothetically would be located which include the last network device on the path If you use that device as the endpoint you are no longer measuring the devices delay loss and jitter but the path to it If the device is saturated on the egress interface s you will never know it s the endpoint and we don t use the egress interface only the ingress e Some network devices will throttle ICMP responses to a UDP port unreachable but will pass through the pings Let s say we have a router and the CPU is at a high utilization and we are using it as the edge host We do a UDP ping and the router holds onto it until the utilization drops and then sends the response Or the router just ignores the UDP ping entirely Either way the results are skewed Q What devices should I use as endpoints A For RTP tests endpoints must be Windowx XP boxes with the Avaya Traffic Simulator installed For Ping tests PCs or UNIX workstations are preferred The hardware is typically very stable and many PCs or workstations will respond to pings quite efficiently Network hardware listed above should be avoided if at all possible Newer printers may be used but ping UDP and ICMP them first
7. endpoint is not pingable Timeout A ping request was sent but a response was not received Off Path A ping response was received from a device not located on the tracerouted path Failed No results returned for the RTP test Tracert Status Indicates whether traceroute is enabled or disabled for a path Will be automatically off if the test is in the same subnet SNMP Status Displays whether there is a router switch in the path which can be contacted using SNMP OK SNMP status was successfully obtained Not Contactable The device cannot be contacted Not Supported The device does not support SNMP queries or the SNMP Polling option has been deselected Timeout The device did not respond to an SNMP query in time 21 22 This column is useful for determining DSCP problems on the network The DSCP is shown in a slash notation The first value is the user requested DSCP that will be injected into the network with the Ping RTP packets The second values show all the DSCP values that were found in the network in a comma separated format For example 46 46 20 30 0 means 46 was the priority code of packets sent into the network On the forward link packets were received with the setting 46 and 20 and on the backward link it found packets with the setting 30 and 0 This indicates that the network isn t preserving the DSCP value Indicates the number of calls that will be run si
8. if you do not want to discover network paths automatically the Discover Paths entry in the main menu bar will be disabled but you still will be able to add paths manually Click on the icon and then click on the control of interest to get more details C Discover Topology Use Existing Topology Restore Defaults Beck Camel xpertNet Lite Assessment Tool User Guide Discover Topology Select this option if you want the Controller to discover network topology from scratch Steps 2 1 and 2 2 in the Configuration Wizard are enabled You must have SNMP access to network routers to use this option Use Existing Topology Select this option if you want the Controller to reuse the existing topology file from a previous discovery No Topology Select this option if you do not want to or cannot discover network paths The Network Tests gt Discover Ping Tests entry in the main menu bar will be disabled but you will still be able to add Ping tests manually You may want to consider this option if SNMP access to network routers is not allowed Step 2 1 Location to Start Network Discovery Steps 2 1 and 2 2 will only display if you selected the Discover Topology option ExpertNet Lite Assessment Tool Configuration Wizard Step 2 1 Location to Start Network Discovery Which router should the Controller use to start network discovery P v Select default gateway if you want to use the d
9. option is selected in Step 6 of the Wizard These RTP tests will use the default settings configured in the Wizard Adding RTP Tests Manually If the Automatically Create RTP Tests option is not selected or if you want to add multiple RTP tests with different parameters to the same endpoint you can you the Add RTP Tests option to manually add tests Creating multiple tests to the same endpoint can be useful for determining if varying the values can yield different results For example adding a test to the same endpoint and then changing the codec or the DSCP value could improve the RTP test results To add a new RTP test select Add RTP Test item from the Network Paths menu or click the toolbar icon Ny Please follow on screen instructions and context sensitive help available in the Add RTP Test dialog 16 Add RIP Test This dialog enables the user to add a RTP test to a registered Traffic Simulator on the network Click on the icon and then on the control of interest to get more details To Endpoint Er Codec 9 729 vi Diff Serv Code Point 6 Voice Payload Size 20 v ms Number of Simultaneous Calls 2 Test Duration 0 sec Traceroute IV Discover Path Protocol upp V SNMP Polling ae TProtocolSelect a traceroute protocol to be used to discover intermediate routers on To Endpoint Select an endpoint to which the RTP test is to be created If Traffic Simulators are connected and registered
10. set up as follows e Disable screen savers e Disable any time synchronization services e Check the Power control panel and disable any options that make the PC move from the active state e Verify the current time and date e Ifthe Controller PC has time synchronization services enabled there is a potential problem of having the Controller PC time roll back to some past time To avoid this disable the time synchronization services during the ELAT run on the Controller PC e Disable virus scan and SMS software It is preferable but not essential that you e Disable all background services like Office Find Indexing Service SETI Ghome etc e If you have multiple NICs installed enable only one NIC and disable all other NICs Obtain the ELAT License File After purchasing a 30 day ELAT subscription email the ELAT administrator elatadmin avaya com to obtain a license file When you receive the file license txt save it in the ELAT config directory by default it is C Program Files Avaya ELAT config BusinessPartners After you have purchased a 30 day subscription you can install ELAT on as many machines as you like at the customer site Once installed the license permits 30 days of usage Avaya Engineers You do not need to purchase a subscription but can generate one from ESDP directly ExpertNet Lite Assessment Tool User Guide Install the Controller Download the ELAT Controller a 40Mb binary file
11. test functionality through the use of Traffic Simulators which are installed on remote machines on the customer network e ELAT supports two ping protocols UDP default and ICMP On some networks the default UDP protocol may not work For example a firewall may be configured to block traffic to certain ports In such cases the user can switch the protocol to CMP e ELAT Controller supports SNMPv1 and SNMPv2 protocols It collects processor and layer 3 interface utilization variables from devices on network paths For the Controller to be able to retrieve SNMP data it must be configured with a list of SNMP community strings The ELAT Controller collects Round Trip Time and One Way Delay measurements along network paths Network paths can be entered manually by the user or discovered automatically To discover paths automatically the Controller employs transparently to the user a bundled ExpertNet Discovery Tool The EDT tool discovers network topology in a scope configured by the user ExpertNet Lite Assessment Tool Architecture ExpertNet Lite Assessment Tool Controller Runs on a PC to measure delay e and packet loss and to produce a dataset e Avaya Traffic Simulator A remote agent that is deployed on various PCs on the customer network to work with the ELAT controller e Dataset from the agent in the form of a compressed file is uploaded automatically or manually to the FTP server e ExpertNet Lite Assessme
12. to ensure that they will respond If you are using laptops verify that the laptops will not hibernate or go into standby mode during the engagement Q What ports does ELAT use A ELAT uses a range of ports The ports range between 24000 26000 and 27000 34000 with the exception of port 33711 and 33712 It also uses the port range 2048 to 3389 for RTP Tests Note that it only requires the first 100 or so ports in this range to be free See C Program Files Avaya ELAT config config xml for further details Q How does the SNMP access work Is it read only What variables are retrieved A The SNMP access is read only The Controller collects processor and interface utilization variables Processor utilization is supported by proprietary OIDs cpmCPUTotal5sec and busyPer for Cisco a3sysCpuUtil for 3Com extremeCpuAggregateUtilization for Extreme genCpuAverageuUtilization for new Cajun 34 devices cpuUtilization for Xylogic Interface utilization is retrieved from standard MIB2 iflnOctects ifOutOctets iflnDiscard ifOutDiscards If ifXTable extension MIB is supported on a device high precision values ifHCInOctects and ifHCOutOctets are retrieved instead of iflnOctets and ifOutOctets Q The Delay graphs show a threshold of 80msec Is this one way or round trip A All measurements are in one way delay RTP tests can determine one way delay without needing RTT Ping tests are actually recording RTT and dividing by two Q
13. to view and analyze the data by generating a report 1 Click on ExpertNet Lite Home link Then click the View Datasets link 2 Click on Download for the appropriate Customer ID ELAT partitions datasets to allow you to view only datasets uploaded by you and other members in the group The current User ID and the group name that he belongs to is displayed on the web page If the User belongs to multiple groups all groups are listed The ELAT server has functionality to generate a Rich Text Format RTF report with charts In the default functionality all paths or targets are selected for inclusion in the report As of ELAT 3 0 reports have been modified to support a new format Paths may be described twice if they were given different characteristics for example different DSCP level different codec and so on The server will process your request and depending on the size of the dataset and the number of elements may take several minutes Once processing is complete you will be prompted with the following menu File Download x gt Some files can harm your computer If the file information below looks suspicious or you do not fully trust the source do not open or save this file File name report rtf File type Rich Text Format From margarita dr avaya com Would you like to open the file or save it to your computer Cancel More Info You may open the file or save for later use The report is dy
14. with the Controller they will be available in the drop down menu for use in making new RTP tests Codec Defines the Codec of the RTP test calls This will alter the rate and size of packets being sent between Traffic Simulators in order to emulate the G 711 and G 729 codecs Diff Serv Code Point Defines the Differentiated Services Code Point DSCP of the IP Packets of RTP test calls Routers will treat packets differently depending on the DSCP value set in outgoing packets By default this value is 46 Expedited Forwarding Voice Payload Size Defines the Voice Payload size of the RTP packets of a test call in milliseconds Must be a multiple of 10 Number of Number of equivalent VolP calls for a selected codec in a single test Simultaneous Calls The default value for this setting is 2 Measurements for each call can only be taken in one direction When two or more calls are configured half of them originate at the Controller and half at the test agent so data is collected in both directions providing a more complete assessment of the network than if a single call were run Test Duration Defines the duration of each RTP test call in seconds Discover Path Check this button if you want the Controller to discover intermediate routers on the path to the endpoint Protocol Select a traceroute protocol to be used to discover intermediate routers on the path to the selected endpoint SNMP Polling Check this button if you want the Control
15. 4 Poll Interval of Single Node secs Maximum Total Number of Polls Sec Number of Request Retries Request Timeout secs Restore Defaults Beck Poll Interval of Single Poll interval defines the interval for sending SNMP requests to a single Node node on the network The default Poll Interval is 120 seconds Maximum Total Used to set network throttling by limiting the number of SNMP requests Number of Polls Sec per second sent to all nodes This setting takes precedence over Poll Interval if Poll Interval is too small it is automatically recalculated by the Controller to satisfy the Maximum Total Default setting is 2 polls per second Number of Request Defines the number of times the SNMP request is sent to a network Retries device if the response does not arrive within the period set in the Request Timeout field The default setting is 1 Request Timeout Defines how many seconds the Controller will wait for a response to an secs SNMP request before sending a retry The default setting is 5 seconds ExpertNet Lite Assessment Tool User Guide Step 5 Ping Settings On this page you have the option to change the default settings for Ping tests run on the network Again these settings rarely need to be modified ExpertNet Lite Assessment Tool Configuration Wizard Step 5 Ping Settings P v Below are the settings for the ping packets that the Controller sends on the network to obtain Round
16. 5 74 148 199 to 135 74 147 193 10 min avg 16 00 18 00 20 00 22 00 00 00 02 00 0400 06 00 08 00 10 00 12 00 1400 To 135 74 148 199 E To 135 74 148 193 To 135 74 148 34 M To 135 74 148 1 M To 135 74 147 193 Threshold 20ms 29 ExpertNet Lite Assessment Tool User Guide Loss 135 74 148 199 to 135 74 147 193 10 min avg 10 0 16 00 18 00 20 00 22 00 00 00 02 00 0400 06 00 08 00 10 00 12 00 14 00 To 135 74 148 199 To 135 74 148 193 F To 135 74 148 34 MW To 135 74 148 1 M To 135 74 147 193 Threshold 1 SNMP Data If SNMP access to routers is enabled and read community strings are available graphs displaying performance criteria will also be available ROUTER IN 135 9 73 189 OUT 135 9 74 1 CPU Utilization 135 9 73 189 5 min avg 2 00 1 75 a N 1 50 1 25 1 00 06 00 08 00 10 00 12 00 14 00 16 00 18 00 20 00 22 00 00 00 02 00 04 00 06 00 E Cisco private MIB 1 This feature is only available for Cisco Routers Cajun Extreme 3Com Xylogics devices at this time 30 ExpertNet Lite Assessment Tool User Guide Interface Utilization 135 9 73 189 10 min avg 00 06 00 08 00 10 00 12 00 14 00 16 00 18 00 20 00 22 00 00 00 02 00 04 00 06 00 Minoctets 6 31 Troubleshooting Q My customer does not want to give us the community string Is there a workaround to not giving Avaya or its representatives the community
17. AVAYA ExpertNet Lite Assessment Tool User Guide May 2008 2008 Avaya Inc All rights reserved Notice While reasonable efforts were made to ensure that the information in this document was complete and accurate at the time of printing Avaya Inc can assume no liability for any errors Changes and corrections to the information in this document may be incorporated in future releases Documentation disclaimer Avaya Inc is not responsible for any modifications additions or deletions to the original published version of this documentation unless such modifications additions or deletions were performed by Avaya About this guide This guide is intended for BusinessPartners and Avaya Associates using the ExpertNet Lite Assessment Tool ELAT for the first time It describes how to get started and how to use ELAT for customers purchasing an IP Telephony solution that requires an IP Network Readiness Assessment About the ExpertNet Lite Assessment Tool ELAT is a software application designed to gather information from an IP network The data gathered is used to produce a Network Readiness Assessment report It is designed to run for an extended period of time usually 5 days in order to see trends in network performance The data is summarized graphically and can be included in the report Three types of queries are used to perform the measurements RTP tests ping probes and SNMP GET requests e ELAT provides RTP
18. Trip Time data These settings rarely require 4 modification Click on the icon and then click on the control of interest to get more details x Pt i Avg Number of Polls Sec Packet Size bytes Request Timeout secs Diff Serve Code Point Restore Defaults Beck Camel Average Number of Determines the frequency of sending ping probes to the network The Polls Sec default setting is 1 ping per second Packet Size bytes Used to set the size of the packets sent by the Controller The value is in the byte size of the ping packet without IP and Ethernet headers The default setting is 180 bytes Request Timeout Defines how many seconds the ELAT Controller will wait for a response secs to a ping before it qualifies the packet as lost The default setting is 1 second Diff Serv Code Point Defines the Differentiated Services Code Point of the IP Packet By default this value is 46 Expedited Forwarding 12 Step 6 RTP General Configuration On this page you have the option to change the default settings for RTP tests run on the network All RTP tests that are added automatically will use these settings You can manually add further RTP tests with different settings when the Wizard settings are configured ExpertNet Lite Assessment Tool Configuration Wizard Step 6 RTP Test Settings Below are the settings for RTP Tests Click on the icon and then click on the control of i
19. as per your network needs The most frequently modified parameters are e Data Collection Interval from the General Settings page e Community strings from the Read SNMP Community Strings page Without the SNMP community strings ELAT cannot retrieve CPU and other metrics of devices and the report will not be as detailed e Topology option from the Network Discovery Options page Other configuration parameters rarely require modification Step 1 General Settings This page allows to to set up general settings for the tool Most fields will not need to be changed ExpertNet Lite Assessment Tool Configuration Wizard Step 1 General Settings This page defines general configuration properties of the Controller such as data collection interval web server port and FTP upload account Click on the icon and then click on the control of interest to get more details Data Collection Interval 5 day v Logging Verbosity Level high v Web Server Port 80 FTP User Name expertnetlite FTP Password msn FTP Server ftp avaya com Restore Defaults coos Data Collection Specify the period for which the ELAT Controller will collect data At the Interval end of this period ELAT will stop running tests and automatically upload the data to the Avaya FTP Server The default interval is 5 days Logging Verbosity Select the level of detail the logging subsystem will store in the log file Level You can selec
20. ate to http lt controller_ip address gt lt port_number gt NOTE To find the IP address of the PC open the Control Panel gt Network Connections gt LAN Area Connection dialog and open the Support tab 3 On the page that displays click the link to download the test agent Traffic Simulator Version 3 0 Build 18 Click here to download the Avaya Traffic Simulator 4 On the dialog that displays click Run 5 On the first screen you can see what version of the Traffic Simulator you are running Click Next to continue ExpertNet Lite Assessment Tool User Guide 6 On this page enter the IP Address or hostname of the Controller and click Next ie Avaya Traffic Simulator Configuration Please enter the IP Address or Hostname of the ExpertNet Controller Upon startup the Traffic Simulator will automatically register with ExpertNet Controller running on this host ExpertNet Controller 135 12 34 567 7 Enter the install location use the default install location and click Next You are now ready to begin the installation Click Next Click Close The machine s network connection will be momentarily disrupted This disruption will typically take 30 seconds at most 10 A window displays giving you the option to reboot now or later Click Yes to reboot the PC Rebooting is required to collect DSCP data Upon start up the Traffic Simulator will contact the ELAT controller The Traffic Simulator Monitor icon is
21. ched to the Controller PC subnet Will this work A Yes it will work as long as the default gateway from the Controller PC is reachable and SNMP enabled Q Is there a rule to select the edge devices when run in Target mode A The rule is to select any IP device that responds to the udping utility However we have found that Printers and some Sun Servers do not fare well in responding to the UDP pings Q Why is it that when attempt to upload a dataset receive an error A There are two possible scenarios e The upload is taking longer than the timeout session for the browser Verify that the browser is bypassing the proxy server for local addresses Try doing the upload early in the morning or late at night when network traffic is lowest As a last case copy the dataset to the field problems server and open a ticket with the STARS team at http gsomissrv2 global avaya com request system request asp tools team 1 e When the dataset was copied from one computer to another it was corrupted For example ELAT is run on a Windows XP box When it is done running you ftp it to another computer When you use the ftp command the binary option was not used so the file was not transferred in a binary format When you upload the file to the ELAT server there is an error To correct for this problem always transfer the file in binary format 33 Q Where are the log files stored C Program Files Avaya ELAT logs Q Can I use network
22. d below to access network devices 6 If you do not provide a complete set of community strings for the network it is recommended that you leave the Prompt option enabled Some Var 7 measurements will not be provided for devices that the Controller cannot l contact using SNMP Click on the icon and then click on the control of interest to get more details public Add Delete Move Up Move Down IV Prompt for community string later if none of these work Add the appropriate SNMP read community strings and prioritize using Move Up and Move Down buttons Select the Prompt for a community string later if none of these work option if you want a warning to display when a device is discovered that does not use any of the configured strings Deselect this option if the customer has not given you the read community strings 10 11 ExpertNet Lite Assessment Tool User Guide Step 4 SNMP Settings On this page you can set values for SNMP requests sent on the network These settings rarely need to be changed ExpertNet Lite Assessment Tool Configuration Wizard Step 4 SNMP Settings P v This page allows you to set values for SNMP requests sent on your network to obtain network performance data such as router interface utilization and CPU A usage These settings rarely require modification Click on the icon and then click on the control of interest to get more details s Y i
23. ection phase in which case the device is not reachable If the device responds to an ICMP but not a UDP ping use the ICMP option Q Why are there no interface statistics for one of my routers A Usually this is caused when the device does not support the standard MIB 2 interface counters This is common for Avaya Cajun devices in particular Please verify the inOctets outOctets and inDiscards outDiscards are available using MIB browser 32 Q Why is there no CPU utilization for one of my routers A There are several reasons why CPU is not being reported e CPU is supported for some not all devices manufactured by 3Com Avaya Cisco Extreme and Xylogics e Older devices may not support SNMP e The community string was not provided or is not correct Q I just created the license file and the customer is receiving a license expired message why A The license file is a window to run the ELAT Controller there is a definitive start time when the license was generated and end time The start time is the date and time the license was generated on the ELAT Server If the customer Windows computer has a date time before the license was generated the ELAT Controller will report that the license has expired There are two ways to solve this problem e Change the date and time of the Windows computer e Wait until the Windows computer date time passes the license file generated date time Q have multiple routers atta
24. ed ports to operate correctly RTP Ports Range End Defines the ending port in the range used for RTP tests Command Port Defines the port used by the Avaya Traffic Simulator to receive commands The default is port 50000 If this is changed the same change must be made in the Local Command Port field in the Remote Traffic Simulators Install and Configure the Avaya Traffic Simulator Installing the Avaya traffic Simulator Install the Avaya Traffic Simulator on each remote endpoint you want to test Each remote endpoint MUST be on the same Voice VLAN on which the VoIP equipment will be eventually installed Each Traffic Simulator will take approximately 2 minutes to install See Appendix A Installing the Controller and Test Agents for information on installing the test agents Configuring the Avaya Traffic Simulator When you restart the PC after installing the Traffic Simulator the application icon will display in your taskbar The icon displays in red if the tool is not running and in green if it is Configure the test agent using the following process 1 Double click the icon in the task bar 2 Ensure the IP address in the ExpertNet Controller field is the IP address of the PC with the controller installed 3 In the Local Command Port field enter the port number that will be used to receive commands This value should match the Command Port value in step 7 of the ELAT Configuration Wizard and should not be chan
25. efault gateway configured on the PC hosting the Controller Alternatively you can specify any router in the network f x Z 4 Click on the icon and then click on the control of interest to get more details C Use this hostname or IP address Restore Defaults es ve om Use default gateway Select this option if you want the Controller to use the default gateway configured on the Controller PC to start network discovery from Use this hostname or Select this option if you want the Controller to use 3 specified initial IP address gateway to start network discovery from Step 2 2 Parts of Network to Discover ExpertNet Lite Assessment Tool Configuration Wizard Step 2 2 Parts of Network to Discover F v Which part of the network you want the Controller to discover 9 The Controller discovers Layer 3 devices by default To discover only part of eA the network limit the number of hops This will also reduce discovery time Please note that enabling discovery of Layer 2 address ranges greater than x l 512 may increase significantly discovery time Click on the icon and then click on the control of interest to get more details gt hows When discovering layer 2 devices I Include network address ranges larger than 512 Restore Defaults Beck cael Limit layer 3 discovery Select this option if you want to limit the scope of network discovery
26. elay and jitter look acceptable Why the failure A Check to see if there is IPX or raw Netbios not IP encapsulated on the network These protocols do not respond to IP QOS and will not show up as IP traffic but will affect the IP traffic Q I get the following error message on start up ExpertNet tm Lite Assessment Tool g x Possible hardware problem the operating system obtained unreliable clock count From the chipset The current timestamp 1193755892959 differs by more than 1008 minutes from the previous timestamp 1193695394609 Please contact your Avaya representative This is a known bug that occasionally happens on certain machines It should only occur once and then you should be able to continue Q Upon start up ELAT presents an error dialog showing Route redirection is not disabled on this machine and then shuts down A Typically the installer will set this registry variable on the controller PC Occasionally this will not work and it will have to be set manually e Open the registry with START gt RUN gt regedit 36 e Navigate to HKEY_LOCAL_MACHINE SYSTEM CurrentControlSet Services Tcpip Parameters Enablel CMPRedirect and then set the value of this parameter to 0 Q The Traffic Simulator is on a machine with dynamic Ps and its I P keeps changing A The ELAT Controller identifies the Traffic Simulator by IP address and not MAC If the IP address does change then the
27. er node RTP traffic datagrams range in size depending on the payload and can vary between 180 to about 300 bytes Q How much bandwidth does ELAT use A For each simutaneous call in an RTP test ELAT uses the expected bandwidth for a single actual VoiP call 35 Q How does the throttling mechanism work A The throttling mechanism is separate for ping and SNMP polling For SNMP configuration wizard in Step 4 SNMP Settings exposes Poll Interval of Single Node secs and Maximum Total Number of Polls Sec parameters Poll interval defines a polling frequency of each node The second parameter limits the total number of SNMP polls issued to the network Maximum Total takes precedence over Poll Interval if Poll Interval is too small it is automatically recalculated by the Controller to satisfy the Maximum Total The default Poll Interval is 60 seconds Maximum Total is 2 For ping polling the configuration wizard in Step 5 Ping Settings exposes the Avg Number of Polls Sec parameter which determines the frequency of sending pings to the network The default value is 2 Q There is a Diffserv value in the config xml file Does that tag UDP packets Is this one direction or both A The ELAT Controller has the ability to tag UDP packets as diffserv These packets are outbound only the response is an ICMP port unreachable and is not tagged Q Our report shows that the network fails the analysis but there isn t much loss and d
28. ged unless required by the network or firewall configuration 4 Adjust the log level as appropriate for your needs Setting this value to max may have an adverse effect on the accuracy of results Setting it to max would only be required whenever there is a problem that requires debugging by support engineers for ELAT 5 Click OK When the test agents are configured thay should autmatically register with the Controller An RTP test will be automatically created for each end point These will display in the network Paths View This will be explained in detail in the next section 15 Adding RTP Tests and Ping Tests Populating the Network Paths View Add RTP Tests About RTP Paths An RTP path is a route from the ELAT controller to an edge PC that has the Avaya Traffic Simulator installed RTP paths can optionally be tracerouted As metrics are collected for RTP paths they will be displayed in the Delay Jitter and Loss columns If RTP paths are tracerouted the routers discovered are represented in the Path Details View for any selected path By contrast an RTP path without traceroute is a route from the Controller to a target device through a cloud of unknown network nodes Adding RTP Tests Automatically RTP tests can be created for endpoints that have the Traffic Simulator installed running and configured RTP tests will automatically be created for these endpoints as they register if the Automatically Create RTP Tests
29. he Controller to enable SNMP polling for RTP test calls Check this box to allow the Controller to use traceroute to discover the paths between the Controller and the Traffic Simulators during RTP test calls Select a traceroute protocol to be used to discover routers on the test path The default setting is UDP 13 Codec Diff Serv Code Point Voice Payload Size ms Number of Simultaneous Calls Test Duration Automatically Create RTP Tests SNMP Polling Discover Paths Protocol 14 ExpertNet Lite Assessment Tool User Guide Step 7 RTP Ports Configuration In this page you must configure the port settings that will be used against the test agents ExpertNet Lite Assessment Tool Configuration Wizard Step 7 RTP Test Port Settings Below are the port settings used against the Traffic simulators for RTP Tests Click on the icon and then click on the field of interest to get more details If you change the start and end ranges you MUST restart all Traffic Simulators including the local Traffic Simulator RTP Ports Range AEE RTP Ports Range End 3390 Command Port 65535 Restore Defaults lt Back Corcel RTP Ports Range Defines the starting port for the range of ports which can be used for RTP tests The typical range for RTP tests used by Avaya is 2048 to 3390 but any other range between 1024 and 65535 can be used The range needs at most 100 unobstruct
30. he following email i ELAT Automatic Upload Notification DO NOT REPLY Message Plain Text lt gt File Edit View Insert Format Tools Actions Help Type a question for help gt DXO This is Spam 4 This is not Spam Brightmail gt Goreply Moreplytoal Y Forward E 9 e AE From ExpertNet TM Lite Assesement Tool ELAT_Server avaya com Sent Tue 5 4 2004 10 10 4M To Rozensky Ronald 5 Ronald GE Subject ELAT Automatic Upload Notification DO NOT REPLY la new ELAT dataset has been uploaded to the following location http mesgterm 8000 elat22 retrieveDataset do dataset id 5t Pete Lab 1083679799094 25 Avaya Associates Avaya Associates should then access the ExpertNet Lite web server and download their report For further information see Appendix C Avaya Associates Downloading the Report Avaya BusinessPartners BusinessPartners will receive an email with encrypted version of their report from their ELAT representative When assessments are complete After assessments are done it is recommended that you remove the Traffic Simulators from the PCs they are installed on 26 Analyzing the Report Reports are generated in RTF format and can be viewed and edited in Microsoft Word All reports contain the following sections e Introduction to Avaya Basic Assessment report e Executive Summary e Background on data e Series of charts Performance summary entire network
31. ler to collect SNMP statistics for devices on this path 17 Add Ping Tests About Ping Paths A ping path is a route from the ELAT controller to any edge device Ping paths may optionally be tracerouted Like RTP paths if Ping paths are tracerouted the routers discovered are represented in the Path Details View for any selected path In this display it will show their ingress and egress interfaces along with other information The last IP address on the path always belongs to a Layer 2 edge device By contrast a ping path without traceroute is a route from the Controller to a target device through a cloud of unknown network nodes Adding Ping Tests Automatically If routers on your network are SNMP enabled and you know their read community strings the best option is to let the ELAT Controller discover network paths automatically To do so select Discover Ping Tests from the Network Tests menu or click the toolbar icon The Controller discovers all subnets within a range defined in Parts of Network to Discover page of the Configuration Wizard An initial Ping is sent from the Controller to all end points in those subnets When you complete and close the wizard select Network Tests gt Discover Ping Tests to automatically add Ping tests in the Network Paths View for all of the endpoints that respond to the initial Ping Adding Ping Tests Manually If you cannot discover paths automatically
32. multaneously on that link Can run up to 10 calls on a single network link at the same time Each column indicates the QoS metric for that column These will only be populated for RTP tests when a result is obtained which is at the end of the call length that is configured for that test These columns will be blank for ping tests The Traffic Simulator will occasionally fail computing a test and this is represented in the controller as 100 loss and the status Failure This does not mean your network actually has 100 loss on that link and this can be easily confirmed with a ping test These results are thrown away for the purposes of graphing so it will not affect the reports DSCP Differentiated Services Code Point Number of calls Delay Loss J itter When ELAT completes the data collection it will upload the dataset automatically to the FTP server as configured in the Configuration Wizard 23 Verify the Tests When all of the tests you want to run are configured you should verify them to ensure that they can be run successfully It is especially important to verify all RTP tests at least once as you may have firewall and port related issues when the tests are started Any failures should be investigated before commencing the week long measurements Appendix B Firewall Configuration for information on configuring firewalls Click the toolbar icon v or right click and select Verify to verify all selected
33. namically generated from a RTF template and an XML data source 50 there is no chance of acquiring 8 virus or worm from the report 43 ExpertNet Lite Assessment Tool User Guide Generate and Download Custom Reports A custom report that excludes certain targets or paths can also be generated Select the Generate link in the Custom Report column on the View Datasets page 2 You will be presented with a graphical representation of the paths 3 Select or deselect the checkboxes next to path as shown in the following image 4 You can get information by hovering the mouse over the object IN IN IN 192 168 16 100 192 168 34 2 192 168 32 27 Version 12 1 5 T RELEASE SOFTWARE fc1 Copyright c 1986 2000 by cisco Systems Inc Compiled Sat 11 Nov 00 17 13 by ccai 5 To generate the RTF report select the Generate Report link ET xpertNet Lite Assessment Tool Microsoft Internet Explorer Gle Edt Yew Favorites Toos Hep Qe x 2 seach Se Favortes B 3 46 5 Address htnp 135 27 66 118 700 1 elat pathSelecton do pathid 10 67 28 1 18 sekect false Mavaya Net Sales amp Support ExpertNet Lite Assessment Tool Company amp Operations Employee Resources pro OG OG 05 9 05 05 05 sun fig 8 05 08 05 05 52 s er ig 7 9 9 9 9 9 9 9 Controller IP Address 10 176 19 13 P f 9
34. ngs from the left menu bar 3 Choose Personal Firewall from the middle column 4 Click Configure 5 In the new window open the Programs tab 6 Find Traffic Simulator in the Manual Program Control table 7 Click the Internet Access column for Traffic Simulator and select Allow All 8 Click OK 41 configure PC Cillin Internet Security Open PC Cillin Internet Security Click Network Security along the left side Click Edit From the Personal Firewall Profile window open the Exception List Click Add Enter the following information in the appropriate fields Oe ON ee N EA e Description Avaya Traffic Simulator e Target Specified Application enter C Program Files Avaya Traffic Simulator trafficSimulator exe e Action Allow e Ports All ports 7 Click Save To configure Tiny Personal Firewall 1 Open Tiny Personal Firewall 2 Go to the Administrator Center 3 From the Groups menu click Trusted 4 Click Enroll 5 Enter Traffic Simulator in the application name field then enter C Program Files Avaya Traffic Simulator TrafficSimulator exe 6 Click Save To configure ZoneAlarm Open ZoneAlarm Select Program Control along the left side Find Traffic Simulator and click each red X so they are now green Select Allow Exit ZoneAlarm 42 Appendix C Avaya Associates Downloading the Report Download Report Once the dataset is uploaded you will be able
35. now available on the system tray for additional configuration if required Appendix B Firewall Configuration If you have installed Avaya ExpertNet Lite Assessment Tool or Avaya Traffic Simulator on a computer with a firewall installed you may find that RTP tests fail This may be due to the test data being discarded by the firewall You may configure common firewalls to allow Avaya ExpertNet Lite Assessment Tool or Avaya Traffic Simulator to be exempt from the firewall s usual rules To configure Windows Firewall Open the Windows Firewall Configuration Control Panel Windows Firewall 2 Click the Add Program button found on the Exceptions tab Click Browse and select C Program Files Avaya Traffic Simulator TrafficSimulator exe 4 Click OK Ensure the Don t allow exceptions tick box is un checked in the General tab To configure McAfee Personal Firewall Open McAfee Personal Firewall Select Personal Firewall Plus along the left side Click View the Internet Application List Find Traffic Simulator in the Application Name column Right click Traffic Simulator and select Allow Full Access If you don t see Traffic Simulator in the Application Name column click Allow New Application and enter C Program Files Avaya Traffic Simulator TrafficSimulator exe 6 Exit McAfee Personal Firewall To configure Norton Personal Firewall 1 Open Norton Personal Firewall 2 Select Status amp Setti
36. nt Tool Server Analyzes uploaded datasets to produce graphical representations that can be browsed or included in the Report Download gt via HTTP Avaya Technician Workstation Network Assessment Report ELAT Server Dataset upload via FTP I ELAT Controller _RTP pe RTP Test amp UDP ICMP Test Traffic Simulator Traffic Simulator Traffic Simulator Requirements for ELAT Controller Hardware e Standard IBM PC compatible e Intel x86 CPU or compatible Pentium 1Ghz performance 512MB of RAM for Windows XP e 3GB free disk space Operating System e Windows XPTM Professional Edition with Service Pack 2 e Net framework 2 0 preferable Network e 100Mb s or greater Ethernet adapter NOTE If multiple NIC s exist it is preferable but not required to disable all but one Requirements for Avaya Traffic Simulator Hardware e Standard IBM PC compatible e Intel x86 CPU or compatible Pentium 1Ghz performance e 512MB of RAM for Windows XP e 150MB free disk space Operating System e Windows XPTM Professional Edition with Service Pack 2 e Net framework 2 0 Network e 100Mb 5 or greater Ethernet adapter NOTE If multiple NIC s exist it is preferable but not required to disable all but one Installing ExpertNet Lite Assessment Tool Controller Before installing ELAT please ensure that all PCs on which ELAT will be installed are
37. nterest to get more details Codec 893 vi Diff Serv Code Point 46 Voice Payload Size ms 20 Number of Simultaneous Calls 2 Test Duration sec 0 Automatically Create RTP Tests Traceroute IV DiscoverPaths Protocol UDP v Restore Defaults lt Back Corcel Defines the Codec of the RTP test calls This will alter the rate and size of packets being sent between Traffic Simulators in order to emulate the G 711 and G 729 codecs Defines the Differentiated Services Code Point DSCP of the IP Packets of RTP test calls Routers will treat packets differently depending on the DSCP value set in outgoing packets By default this value is 46 Expedited Forwarding Defines the Voice Payload size of the RTP packets of a test call in milliseconds Must be 3 multiple of 10 Defines the number of RTP test calls to execute simultaneously for a single test The default value for this setting is 2 Measurements for each call can only be taken in one direction When two or more calls are configured half of them originate at the Controller and half at the test agent so data is collected in both directions providing a more complete assessment of the network than if a single call were run Defines the duration of each RTP test call in seconds Check this box to allow the Controller to automatically create new RTP test Calls from the Controller to the RTP Traffic Simulator as the simulators register Check this box to allow t
38. old entry for the Traffic Simulator needs to be removed and the Traffic Simulator would need to re register Q Imported paths fail to run properly during a measurement run A Whenever paths are imported it is important to do a verification test to ensure that the RTP Traffic Simulators that are indicated are actually registered with this ELAT Controller and hence can be contacted for doing the test If the Traffic Simulators do not respond to the ELAT Controller they will have to be restarted Q RTP tests fail when used on a machine with an active VPN connection A ELAT cannot run RTP tests if the controller or traffic simulator in question is on a device with a VPN driver as this causes conflicts with the driver used by ELAT 37 Appendix A Installing the Controller and Test Agents Installing the ExpertNet Lite Assessment Tool Controller Double click on the installer icon Click Next The license agreement is presented Accept the agreement and click Next Pe ee Keep the default values and click Next to install all features to the default location As well as the ELAT Controller this will install the ELAT Web server This is a lightweight application that is only active for the period the ELAT controller is active It will enable to to install the Avaya Traffic Simulators more quickly and easily You are now ready to install the application click Next Click Finish to complete the installation Now you are presented
39. string s A Without the community strings we cannot retrieve performance criteria CPU interface from devices A workaround is to ask the customer to create temporary Read community strings that expire or will be deleted when ELAT has concluded data collection Once the community strings expire or are deleted the community strings in the dataset will no longer be valid and will not compromise the customer s network We recommend public or Avaya as the Read community strings Please have the customer verify that the community strings will expire after data collection has concluded Q Why do I not see a path that I was expecting to see A The following are some of the reasons why you do not see the expected path e The EDT may not discover the desired subnet because either there is no read SNMP community string available for any of the devices along the path or the sub network is out of scope limit e The ELAT Controller could not complete the traceroute to the desired host e The expected path is part of another long path in which case the expected path was removed as a Redundant path Q Why do I see 100 packet loss for a given path A The following are some of the reasons e Some devices are not responding to UDP ping which will show up as 100 packet loss Use the udping utility located in the bin directory to verify that the device does respond to UDP ping e The Network might have changed during the data coll
40. t None Low Medium and High The default is High Web Server Port Enter the port number of the bundled Web Server for downloading the RTP Traffic Simulator to remote endpoints To download the Traffic Simulator point the Web browser to http lt controller IP address gt lt port number gt FTP User Name Enter the user name of the FTP Server account for uploading data to Avaya FTP Password Enter the password of the FTP server account for loading data to Avaya FTP Server Enter the name of the FTP Server to which the data is uploaded Default values for these fields should never be changed Step 2 Network Discovery Options Each time the user selects Network Paths gt Discover Paths menu item from ELAT s main menu the EDT tool discovers the network and leaves behind a topology file The default location is C Documents and Settings lt userid gt My Documents Avaya ExpertNet Discovery Tool topology_files topology vpa This file can be reused next time the user wants to discover paths ExpertNet Lite Assessment Tool Configuration Wizard Step 2 Network Discovery Options appropriate discovery options have to be chosen Select Discover Topology if you want to discover network topology from scratch Select Use Existing v In order for the Controller to be able to automatically discover network paths nn Topology to reuse the topology file from 3 previous discovery A Select No Topology option
41. t Lite Assessment Tool User Guide Understanding the Network Paths View E Network Paths View DE To Tot Test Tracer _DSCP Delay ms Loss 4 Jitter ms Endpoint pe Status Sake g Fwd Rtn Dice Calls Fwd Rtn Fwd Rtn Fwd Rtn UDP OK ON OK rar 135 27 67 125 9 OK OFF Wot Cont 46 135 27 67 125 9 OK OFF Wot Cont 46 32 29 39 Not Conta 32 29 23 82 Not Conta 135 56 81 Not Conta 198 152 2 Not Conta cloud reas 0 Not Pingable Not Conta All of the Network Paths or Tests that you have created are added in the Network Paths view The icon at the beginning of each row indicates the type of test The icons display in red for failed tests The remaining columns contain further information about the test parameters and results RTP Tests The below image displays the Network Paths view of an RTP test All of the columns contain data when the test is added When a test is verified or run the results will be entered in the last three columns Delay Loss and Jitter The test Status may change depending on the test results The table below explains all of the columns in detail Network Paths View DE con ia an E ed a SDR Endpo Status Status EE d Of Calls wd Rtn rai Tests are run from the Controller to the Traffic Simulator and from the Traffic Simulator to the Controller Results are displayed in forward backward notation For example 30 150 indicates that there was 30ms dela
42. the tests Use the Select all button on the toolbar to select all of the configured tests Alternatively use Ctrl click and Shift click to select multiple tests ExpertNet Lite Assessment Tool User Guide Begin Data Collection At this point the Network Paths View should be populated with tests that provide a good coverage of your network and all of these tests should be verified Every ping test will collect raw Round Trip Time RTT data for all ingress interfaces on the path Every RTP test will cause a flow of RTP packets through the network and collect QoS data In addition each SNMP contactable router will be polled to collect CPU and interface utilization To start collecting RTP Ping and SNMP measurements select Start Measurements item from the Measurements menu or click the toolbar icon Data is collected for the Data Collection Interval time set in the General Settings page of the Configuration Wizard or until stopped Leave ELAT running until the test period is over A progress bar displays at the bottom of the window ExpertNet Lite Assessment Tool EEK File Configuration Network Tests Measurements Views Window Help 69979 0 F Network Paths View 77 To Test Test Tracert 8 Number Delay ms Loe Jitter ms Endpoint Typ ee wd Rtn Of Cals Fwd Rtn ay Fwd Rtn 10 5 0 10 UDP eee 9 729 OK OFF Not Cont 135 27 67 125 9 OK OFF Not Cont F Details of UDP Ping test from 135 27 66 93
43. to 10 3 0 20 rep Denton nes a nese ees adir sene RT roma Sw ane 32 29 39 Not Conta 32 29 23 82 2 Not Conta 1 OK Not Conta 198 152 2 OK Not Conta cloud reas 10 Not Pingable Not Conta F Log View Timestamp Source Message 155 Node 32 29 23 82 is not SNMP contactable Node 32 29 39 161 is not SNMP contactable router 135 27 66 1 23 10 24 24 2 30 router 10 24 24 1 30 135 27 81 50 30 roul router 135 27 66 1 32 router 10 24 24 1 32 router 135 27 81 49 32 router Paths serialization completed completed 100 M A 24 ExpertNet Lite Assessment Tool User Guide When the tool is finished running a dialog will display giving you the option to upload the gathered data so that a report can be generated Click OK to upload Dataset Upload The Controller is about to upload the dataset to the Avaya FTP server The FTP parameters seen in this dialog box can be preconfigured from the Controller s configuration menu Dataset Name pp FTP Server Name ftpavayacom 00000000 User Name ID fexpenetitd Password o Cancel If the automatic upload fails for any reason you can you the Upload button to try again or email the dataset to the ELAT support team elatsupport avaya com Automatic Upload Notification The ELAT server polls the Avaya external ftp server on a regular basis Once the ELAT server finds the dataset automatically uploaded you will receive t
44. to a to lt n gt hops specified number of hops routers on network paths Include network Select this option if you want to scan ranges of network addresses greater address ranges larger than 512 in search of layer 2 devices Discovery time may increase than 512 significantly if you select this option Step 3 SNMP Read Community Strings Read Community strings are used to retrieve SNMP data from the customer network Without the community strings we cannot retrieve retrieve performance criteria CPU interface from devices If your customer does not want to give you the community strings a workaround is to ask the customer to create temporary Read community strings that expire or will be deleted when ELAT has concluded data collection Once the community strings expire or are deleted the community strings in the dataset will no longer be valid and will not compromise the customer s network We recommend public or Avaya as the Read community strings Please have the customer verify that the community strings will expire after data collection has concluded ExpertNet Lite Assessment Tool User Guide If the customer is not willing to allow this level of access you can proceed without read community strings Performance criteria data will not be collected ExpertNet Lite Assessment Tool Configuration Wizard Step 3 SNMP Read Community Strings The Controller will use the ordered list of read community strings provide
45. with the Reboot window Click Yes to reboot the PC oN Ou You are now ready to install the license key You should have received the license key from Avaya usually via email It is a file named license txt Paste the file into the ELAT config directory If you installed the device to the default location the path is C Program Files Avaya ELAT config directory If there is an existing file with the same name replace it 9 For information on running ELAT see the ExpertNet LiteTM Assessment Tool User Guide Version 3 0 Installing the Avaya Traffic Simulator The Avaya Traffic Simulator has to be installed on remote endpoints in a customer network The easiest way to get the application onto customer machines is to download via the web server onboard the ELAT server If you did not select the option to install the Web Server when installing the Controller you can download the Traffic Simulator from the support avaya com portal Note A Traffic Simulator will be installed on the ELAT controller PC by default on an ELAT installation This Traffic Simulator can only be uninstalled by uninstalling ELAT The remote Traffic Simulators can be uninstalled at any time 1 Launch the ELAT Controller 2 On the remote Traffic Simulator PCs open up a browser window In the Address field enter the IP address of the ELAT controller PC If you have changed the Web 38 39 Server port from the default value of 80 you need to navig
46. y forward and 150ms backwards indicating an asymmetrical network path ELAT will traceroute ONLY in the forward direction and not the reverse 20 RTP tests offer more complex settings than ping tests and it maybe worthwhile having multiple tests to the same endpoint with different settings to see whether there is an impact on the metrics gathered See Troubleshooting on page 35 for more information about RTP tests Ping Tests The following is an example displays two ping tests with different settings As you can see only the first 6 columns contain data QoS data can only be gathered using RTP tests L Network Paths View To Test Test Tracet SNMP DSCP elay ms sey ter ms Endpoint 5 Status Status Status q Fwd Rtn Of Cals wd Rtn wd Rtn wd Rtn 10 5 0 10 0 va 46 Unknown Columns in the Network Path View The columns in the Network Path View window are as follows To Endpoint The endpoint the test is against typically an edge PC The icon indicates the type of test The phone icon represents an RTP test and the computer icon represents a ping test Test Type Shows more precisely the type of tests For RTP tests this can say G 711 or G 729 representing the different codecs For ping tests this will be ICMP or UDP Test Status Indicates the last known state of a test RTP tests can go into the OK Failed and Timeout categories OK The endpoint responded successfully Not Pingable The

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