stream multiscreen · snmp collector can work simultaneously with several wisi chameleon. number of...

STREAM LABS

Stream MultiScreen SNMP Collector

17.04.2015

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History

Version Author Comment

1.0 V. Krupkin Initial version – description of the module and its setup. Alerts and head-end station WISI Chameleon.

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Content

SNMP COLLECTOR – MODULE OF STREAM MULTISCREEN SYSTEM ........................................................................ 3

LICENSING ..................................................................................................................................................................... 4

SETUP .......................................................................................................................................................................... 4

Addition of SNMP Collector server ........................................................................................................................ 4

Settings for connection to database ..................................................................................................................... 5

Settings for work with WISI Chameleon................................................................................................................ 6

Settings for signal reception in properties panel of WISI DVB-S2 Channel ........................................................... 7

Settings in a status panel ...................................................................................................................................... 8

HEAD-END STATION ............................................................................................................................................... 9

MONITORED PARAMETERS ............................................................................................................................................... 9

WISI-GTDVBS2-MIB ............................................................................................................................................... 9

WISI-GTDVBT2-MIB............................................................................................................................................. 10

10

SNMP Connection Lost ........................................................................................................................................ 10

Signal Unlocked .................................................................................................................................................. 10

RF Level ............................................................................................................................................................... 10

SNR Level............................................................................................................................................................. 11

BER Level ............................................................................................................................................................. 11

Eb/N0 Level ......................................................................................................................................................... 11

APPENDIX 1. SETUP PF SNMP PROTOCOL FOR WISI CHAMELEON ........................................................................ 12

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SNMP Collector – module of Stream MultiScreen system SNMP Collector – add-on module for Stream MultiScreen, designated for integration of external devices

with monitoring system. Module executes periodic collection of data from external devices using

protocols SNMPv1 and SNMPv2. It is being utilized by sending requests SNMP-GET to pre-configured

devices.

Schema of integration of SNMP Collector into Stream MultiScreen is presented on Figure 1.

SNMP Collector can work simultaneously with several WISI Chameleon. Number of channels is limited to

broadband and CPU.

Several SNMP Collector servers could be installed on one network.

SNMP Collector is configured using client Stream MultiMonitor, which is part of monitoring system

Stream Multiscreen.

Figure 1 Chart of integration of SNMP Collector into Stream MultiScreen

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SNMP Collector is fully integrated into Stream MultiScreen. Alerts, generated by SNMP Collector are

being logged into Stream MultiScreen database. Also, visual alarms could be displayed in a status panel

of Stream MultiMonitor.

Licensing USB key StreamLabs Cryptokey (dongle) with license for SNMP Collector is required for operation of

SNMP Collector. License is valid for entire module. There is no limit on the number of deployed WISI

modules.

If service cannot locate a dongle; or license is missing, then SNMP Collector operates with some

restrictions - it stops detecting and logging errors during signal reception. The rest is functioning

normally, meaning that server can be configured in MultiMonitor; objects for monitoring could be

added, but all of them will be marked with «No License».

It is possible to validate license in MultiMonitor. Select SNMP Collector in a project tree and check if field “License” is check-marked.

Figure 2 License in the Properties of

SNMP Collector

Setup of the system Stream MultiMonitor in editing mode is used for setup of the system. User’s guide for work with Stream

MultiMonitor is outside of scope of this document and is part of user’s guide for Stream MultiScreen.

Addition of SNMP Collector server

In order to add SNMP Collector server to monitoring system, go to branch «SNMP Collector servers» and

select «Search and add servers» from the right-slick context menu. «SNMP Collectors» form will open

up, select a needed server press «Add» button.

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Addition of server is presented on Figure 3.

Figure 3 Addition of SNMP Collector

Connecting server to the database

Select SNMP Collector server in objects tree, then go «Settings»->«Monitoring». In properties panel

select SQL server with MultiMonitor database from drop down menu for property «Connection string».

Also select authentication method, usually «Use SQL Authentication» with default login MultiScreen4

and default password MultiScreen_4.

This flow is shown on a Figure 4.

If connection was successful, then «State» in Monitoring branch will change to «Operating».

Note: SNMP Collector server is supported by MultiMonitor database in versions 5.1.3 and higher. You

may view database version in property «DB Version» in Monitoring branch.

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Figure 4 Connection to database

Setup for work with WISI Chameleon

Go to the branch «WISI devices» in objects tree and select «Add» from context menu. Interface for

addition of WISI is presented on a Figure 5.

Figure 5 Addition of WISI Chameleon

Set following parameters:.

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«Type» - type of input signal. DVB-S2 and DVB-T2 are supported.

«Name» - name of receiver. This name will be displayed in objects tree and used for logging

alerts into database. If you leave it blank, the system will assign a default name.

«Module» - number for head-end WISI.

«Channel» - number of the channel of head-end station.

«SNMP agent» - parameters for SNMP, needed for connection to head-end station, namely: «IP

Address» - IP address of head-end station; «Community» - level of access; «Refresh

period» - fetching cycle in sec(s). Setup of SNMP at head-end station is described in «Appendix

1. Setup of SNMP for head-end station WISI Chameleon».

«Stream Settings» - parameters for calculation of bitrate and Eb/N0 ratio of incoming signal in

DVB-S2 receiver.

Note: by default the system is trying automatically to set parameters, received

from the device via SNMP service. If case of success, these parameters will be

used for calculations.

If settings are incorrect or application for some reason cannot connect to the device, alert «SNMP

Connection Lost» will be generated.

Press OK to finish setup.

Parameters of incoming signal in properties panel of WISI DVB-S2 Channel

Stream MultiMonitor allows viewing of real-time parameters of incoming signal. Select receiver in

objects tree and open properties panel. Parameters are being displayed in a group «4. Current state».

The system displays:

Capture of the signal by the receiver;

Signal noise level, dBm;

Signal/noise ratio, dB;

Intensity of bit errors, BER;

Eb/N0 ratio;

Valid stream bitrate, kbps

Total stream bitrate, kbps

For refreshing of values either press «Get» button in toolbox of objects tree or select «Get» from

context menu for WISI DVB-S2 Channel object.

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Properties panel also displays:

«1. SNMP Agent» connection parameters for SNMP;

«2. Device WISI» - input authentication for head-end station;

«3. Stream Settings» - parameters of incoming signal;

«4. Real-time status» - current parameters of the stream;

«5. Alerts» - turn on/off detection of alerts.

«6. Alarm SNMP Connection Lost» - settings for alarm;

«7. Alarm Signal Unlocked»» - settings for alarm;

«8. Alarm RF Level» » - settings for alarm;

«SNR Level» - «9. Alarm SNR Level» » - settings for alarm;

«10. Alarm BER Level» » - settings for

alarm;

«11. Alarm Eb/N0 Level» » - settings for

alarm.

Figure 6 Properties of WISI DVB-S2 Channel

Setup of real-time status panel

Stream MultiMonitor supports displaying of real-time status of inputs of WISI Chameleon. Entries can be

added to the status panel via GUI for design, presented on a Figure 7.

Each row represents alerts, currently enabled for the source.

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Figure 7 GUI for real-time status panel of Stream MultiMonitor

Note: colors palette for alerts of SNMP Collector can be changed. Open «System

settings» in objects tree, select alert in «Alerts» category and change a color in a

properties panel.

Head-end station WISI Chameleon

Monitored parameters The system collects data via SNMP with respect to quality of reception. This chapter lists names and

values of OID, which SNMP Collector works with.

WISI-GTDVBS2-MIB

Parameter OID Description Name

gtDVBS2inLocked .1.3.6.1.4.1.7465.20.2.9.4.4.4.1.2.1.3 Capture of the signal. Signal captured gtDVBS2inLevel .1.3.6.1.4.1.7465.20.2.9.4.4.4.1.2.1.4 Current level of signal

reception. Signal level

gtDVBS2inSNR .1.3.6.1.4.1.7465.20.2.9.4.4.4.1.2.1.5 Signal/noise ratio. SNR gtDVBS2inBER .1.3.6.1.4.1.7465.20.2.9.4.4.4.1.2.1.7 Intensity of bit errors,

BER. BER

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WISI-GTDVBT2-MIB

Parameter OID Description Name

gtDVBT2inLocked .1.3.6.1.4.1.7465.20.2.9.4.4.5.1.2.1.3 Capture of the signal. Signal captured gtDVBT2inLevel .1.3.6.1.4.1.7465.20.2.9.4.4.5.1.2.1.4 Current level of signal

reception. Signal level

gtDVBT2inSNR .1.3.6.1.4.1.7465.20.2.9.4.4.5.1.2.1.5 Signal/noise ratio. SNR gtDVBT2inBER .1.3.6.1.4.1.7465.20.2.9.4.4.5.1.2.1.7 Intensity of bit errors,

BER. BER

Alerts Module SNMP Collector allows monitoring quality of incoming DVB-S2 and DVB-T2 periodically, fetching

data from the device via SNMP. System allows detecting of follows errors:

SNMP Connection Lost

Signal Unlocked

RF Level

SNR Level

BER Level

Eb/N0 Level – ошибка определяется только для сигналов DVB-S2.

Parameters for alerts are being set independently for each channel in properties panel for WISI DVB-T2

Channel and WISI DVB-S2 Channel objects.

SNMP Connection Lost

Error indicates that attempt to connect to device is timed -out.

This is a fatal error; service is not available and no data could be collected.

Parameters

ON – turn on/off detection of this event.

Time-out, sec – period of event detection, seconds.

Signal Unlocked

Error indicates that synchronization signal is lost for the given channel.

This error is fatal; no reception for the given channel.

Parameters



RF Level

Error indicates that level of reception is beyond of designated range.

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Parameters



High threshold, dB – alert goes off if reception level is above of this threshold. The value can be set to 0.

In this case high threshold will be disregarded.

Low threshold, dB – alert goes off if reception level is below of this threshold. The value can be set to 0.

In this case high threshold will be disregarded.

SNR Level

Error indicates that signal/noise ratio SNR is beyond the designated range.

Parameters



High threshold, dB – alert goes off if SNR is above of this threshold. The value can be set to 0. In this

case high threshold will be disregarded.

Low threshold, dB - alert goes off if SNR is below of this threshold. The value can be set to 0. In this case

high threshold will be disregarded.

BER Level

Error indicates that intensity of bit errors is beyond the designated range.

Parameters



High threshold, dB – alert goes off if BER is above of this threshold. The value can be set to 0. In this


Low threshold, dB - alert goes off if BER is below of this threshold. The value can be set to 0. In this case

high threshold will be disregarded.

Eb/N0 Level

Error indicates that Eb/N0 ratio of incoming signal is beyond the designated range. Eb/N0 ratio is

calculation according to the spec in chapter Annex G of the document ETSI TR 101 290. Error is being

detected only for DVB-S2 signal.

Parameters

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High threshold, dB – alert goes off if Eb/N0 is above of this threshold уровень Eb/N0. The value can be

set to 0. In this case high threshold will be disregarded.

Low threshold, dB - alert goes off if Eb/N0 is below of this threshold. The value can be set to 0. In this


Appendix 1. Setup of SNMP for head-end station WISI Chameleon All needed settings are shown on a Figure 8.

Figure 8 SNMP settings for head-end station WISI

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