AvayaVoice Monitoring Manager
Kathy NewColorado Springs School District #11
Telecomm Staff’s Network Troubleshooting and Monitoring Geek Tool
Voice Monitoring Manager (VMM):• Logs all IP telephone connections
and calls.• Provides a graphical view of IP
connections.• Provides data for network staff on
Telecomm system health• Continuation of network assessment
which is a snapshot in time.
Geek Speak
• SNMP (Simple Network Management Protocol)- a standard for gathering statistical data about network traffic and the behavior of network components
• RTP (Real Time Protocol) encapsulates VoIP packets for transmission over IP
• RTCP (Real Time Control Protocol)Protocol that works in conjunction with RTP. RTCP control packets are periodically transmitted by each participant in an RTP session to all other participants. Feedback of information to the application can be used to control performance and for diagnostic purposes.
Installing VMM
• When possible, install on a separate server. VMM does not play well with other applications.
• Install application on separate drive from files if possible.
• A 90 day trial version can be installed
• Be sure licenses are purchased for the number of endpoints you have.
S8700 ConfigurationConfigure the IP-Options System Parameters Screen.The default Server IP Address is the server address where VMM is loaded
Configure the IP Network Region Form
VMM Server Configuration
Ensure port 1099 is available. If it’s not available, the VMM server will attempt to use the following ports: 49177, 51173, or 63006.
Windows SNMP Agent must be configured to start automatically. Check by going to Select Start, Settings, Control Panel, Administrative Tools, Services .
Check that a SNMP Community ID has been created. The Community ID for your Windows SNMP Agent must match the Community ID defined in the VoIP Monitoring Manager Options dialog box. By default it is public, but it may have been changed.
While in SNMP service, select Properties and then the Security tab.
If Public does not already exist, add a public ID with Read and Write privileges.
Click OK.
Settings on VMM server
Logon as local host to VMM server. Go to Start, Run and type mstsc –console. Select the VMM server and then type your logon name and password for server.
Right click on VMM server icon at the right of the task bar and click on Show VMM Server
Connect to database: Select File, Connect to database.
Enter the Database Server name, Logon Name, and password. The server name can be either a name or an IP address. Default is localhost.
Check that the license server is configured.
Under Edit are choices for SNMP settings, Trap settings, Options and Configure Aliases (Friendly names)
The server Database has limited storage (about 2Gb). Stores data in SQL Server 2005 Express database for 30 days and or you can upgrade to SQL Server 2005 and it will be stored for 100 days.
Can also change configuration for RTCP port, configuration messaging port and client password.
Traps requires an SNMP server to be configured on the network. This will probably need to be coordinated with network staff.
Configure friendly names
• Create a file in excel with IP address and the Medpro Name in separate columns.
• Convert to a text file, name it “friendlylabelsclient.ini”and place in the VMM folder on the server.
• Click on “Toggle Aliases” in VMM to show names instead of IP addresses.
Installing the License
Copy license file from Avaya into folder on VMM server.
Connect to WebLM ServerUser name is admin and password is weblmadmin
Type file location or browse to location and click install.
Can also add users, change passwords and view license information.
Using VMM
More Geek Speak
• Quality of Service: Measure of the level of quality that a service requires. VoIP has 3 main factors: Jitter, Round Trip Time, and Packet Loss.
• Jitter: Packets arrive out of sequence• Jitter Buffer Underrun: when the arrival time
of packets increases beyond a specific threshold • Jitter Buffer Overun: when too many packets
arrive too quickly the jitter buffer may fill and be unable to handle any further packets
• Packet Loss: IP packets are lost or discarded if time to live is exceeded
• Round Trip Time: Time needed go to destination and return. One way time should not exceed 200 ms and 500 ms causes noticeable problems.
•TTL (Time to live) – Part of IP packet that provides system with time to keep packet before discarding if not deliverable.
•Number of Sequence Jumps – number of hops between endpoints
•Max Sequence Jump – number of packets that reached maximum number of hops between endpoints
•Number Sequence Falls
•Max Sequence Fall
•Received Octets
Using VMM
•Connect to new Server•Export data for sessions•Search•Graph Report•Configure Report Properties•Copy report (graphs)•List all active endpoints•View report for selected endpoints/session•System Summary Report•Update/Refresh•View Results/List (toggle between windows)•Display license info at bottom•Help o specific item•Help documentation
Icons Explained
Configure Report Properties
Search
• You can search endpoints active from a specified time in the past or within a date range. The Advanced Search options enable you to narrow your search to match phone numbers, SIP user names, network addresses, or QoS level.
System Reports
Endpoint Reports (Medpro/gateway Level)
Endpoint Report (per call)
Exported reports ( Excel )
1st section:• Session ID• Participant ID• Start Time/End Time• Receiver IP Address• Receiver Phone number• Tool/Board type• Payload type (codec)• Gatekeeper• Last Known 802.1p• Last known 802.1Q• Acoustic echo cancellation• Last known DSCP• Echo tail length• Frame size• Media encryption• Silence Suppression
2nd section:• SessionID• Participant ID• TimeOffset• Jitter• RTT• Lost Packets• Octets• RSVP (enabled or disabled)• LargestSeqJumps• NumberSeqJumps• LargestSeqFall• NumberSeqFalls• TTL• MaxJitter• JitterBufferDelay• JitterBufferOverRuns• JitterBufferUnderRuns
3rd Section:• Session ID• Participant ID• HopCount• HopTime (ms)• HopAddress -
Other Tools:
PingASA command ping ip xxx.xxx.xxx.xxx board xxxxDOS command ping xxx.xxx.xxx.xxx
Trace routeTrace-route ip-address xxx.xxx.xxx.xxx board xxxxxDOS command tracert xxx.xxx.xxx.xxx
Netstat -a
Questions???
