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Bridge Technologies VB440, User Manual

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Bridge Technologies VB440 User Manual Download Page 27

Virtual Receive Buffer (VRX) 

This section contains three graphs. The VRX graph measures

​

 the number of packets 

present during the steady state window. The next two graphs show if the Virtual receiver 
buffer underflow or overflow. 

 

Network Burstiness (C) 

The first graph shows average and maximum packets in real time. The maximum value is 
pre-defined based on the type of transmitter. The second graph shows the number of 
packets exceeding the maximum allowed value. 

VB440 Studio Probe User’s Manual v6.0

© Bridge Technologies Co AS

27

Summary of Contents for VB440

Page 1: ...o Probe User s Manual Applies to software release v6 0 November 2020 Current documents are always found in the log in area of the www bridgetech tv site Refer to section 1 2 of this document for more...

Page 2: ...nd all other related logos are registered trademarks of BRIDGE TECHNOLOGIES Co AS All other products or services mentioned in this document are identified by the trademarks service marks or product na...

Page 3: ...ace 7 3 4 Graphical User Interface 8 3 5 Configuring Ethernet settings 8 4 The VB440 Graphical User Interface 9 5 The VB440 expert user interface 46 5 0 1 Monitoring configuration Summary 46 5 0 2 Mul...

Page 4: ...ed rather than unicast or multicast One stream may consist of one or more services and refers to one IP uni or multicast Chapter 2 SAFETY lists safety precautions and this chapter should be read prior...

Page 5: ...y trained and qualified personnel should be allowed to install replace or service this equipment This equipment must be installed and maintained by service personnel as defined by AS NZS 3260 Incorrec...

Page 6: ...CR CR S 25GBASE SR 25GBASE LR 25G Ethernet Consortium 10GBASE SR 10GBASE LR 10GBASE ER 10GBASE CX4 SGMII 1000BASE X 3 2 Quick Installation Guide Connect one or both of the management cables Please not...

Page 7: ...o the static management port the default address should be 10 0 20 101 Your machine will have to be on the same network in order to reach it through that address If you have connected it to the DHCP m...

Page 8: ...go to http IP admin 3 4 Graphical User Interface The default GUI should look similar to the following picture For more information refer to chapter 4 3 5 Configuring Ethernet settings The VB440 comes...

Page 9: ...es you to the Flow View The clock indicates the Status View Note that Status view also is the landing page when you first open the probe in a browser The last symbol illustrates a tool box which opens...

Page 10: ...etrieved through Link Layer Discovery Protocol LLDP if available Neighbor Port Displays the name of the port of the neighboring device if it is reported by LLDP PTP State Shows the current state of th...

Page 11: ...name capabilities IP management addresses etc The Information gathered with the help of LLDP can be useful for troubleshooting configuration problems within the network or locate connected devices PTP...

Page 12: ...delta between the timestamp in the announce messages and the PTP clock on the interface at the time of reception Time Source The timing source for this clock Priority1 The Priority1 value for this cl...

Page 13: ...gth and retransmission of packets click the Details button to the right Throughput The throughput speed of the video engine with this current load measured as number of frames per second Delay Maximum...

Page 14: ...y added due to network propagation delay and other delays Lower values are better Optimal value is physical distance speed of light 2 Transmit Rate Number of bits per second transmitted to and acknowl...

Page 15: ...ds requested bandwidth or grow above zero otherwise This value tells something about latency added due to unfavourable network conditions between server and client Lower values are better Retransmissi...

Page 16: ...e screenshot below To easily locate a specific flow use the search box in the top left corner The icons to the left illustrate the type of flow you are looking at The video camera indicates a video fl...

Page 17: ...see the total number of configured flows flows monitored and the composition of Video Audio and Anc flows To include all configured flows click on the button Show Unmonitored in the upper right corne...

Page 18: ...e flow class is added as a part of the flow name by separating the flow name and class with the character In order to join more then one class of flows and create two identical parallel services it s...

Page 19: ...If the flows are configured correctly they should be displayed as shown below in the screenshot of the status view VB440 Studio Probe User s Manual v6 0 Bridge Technologies Co AS 19...

Page 20: ...lows associated with each service is displayed on the right side of the service name To access the detailed service view click directly on a service from the list or select a service from the bottom o...

Page 21: ...u will find the audio bars if available To watch the preferred stream use the buttons at the top left in this view named Primary and Secondary The selected stream will be marked yellow To the right ea...

Page 22: ...h individual flow Click anywhere on the line to extend the window and see the c urrent status of the selected flow The new window contains two IAT graphs and detailed measurements as shown in the scre...

Page 23: ...leshooting by capturing packets for analysis To capture a packet click on the Packet capture button to the left A drop down menu will appear as shown below VB440 Studio Probe User s Manual v6 0 Bridge...

Page 24: ...t limit put into the Packet Limit field or the time limit in the Time Limit field This feature is useful for capturing events after the fact Please note that the probe has limited space so an arbitrar...

Page 25: ...view there is an option to change the timeline for the graph to either 5 minutes or 30 seconds To understand the Timing view it s helpful to understand the timing model For more information we suggest...

Page 26: ...irst Packet Time graph shows the time difference between the packet s timestamp at arrival and the Alignment Point While the FPT Margin graph shows the time difference between the packet s timestamp a...

Page 27: ...aphs show if the Virtual receiver buffer underflow or overflow Network Burstiness C The first graph shows average and maximum packets in real time The maximum value is pre defined based on the type of...

Page 28: ...rent tabs If the flows are configured to contain more than one class both flows will be displayed as shown below In between the primary and secondary flow you can see an illustration of which stream i...

Page 29: ...Video The Video view shows the colour scope of the video flow displayed in three different tabs Waveform Vectorscope and Diamond VB440 Studio Probe User s Manual v6 0 Bridge Technologies Co AS 29...

Page 30: ...uminance CbCr displays color difference YCbCr combines the first two and RGB shows the red green and blue components in the video The buttons at the bottom of the view makes it easy to select the pref...

Page 31: ...buttons at the bottom Changing the colour space in this view will change the video picture for all clients To increase the contrast of the vectorscope press and hold the eye icon VB440 Studio Probe U...

Page 32: ...the display where the two diamonds join The whites are at the top of the upper diamond and bottom of the lower Blue and red is displayed on the right and green on the left If the image is balanced an...

Page 33: ...e audioflows belonging to the specific service The audioflows are displayed in three different sections of the view through RMS meters Goniometer and a LUFS radar VB440 Studio Probe User s Manual v6 0...

Page 34: ...there is a Microphase meter Gonio Meter A signal is plotted on each axis A left only channel will run a line from top left to the bottom right on the L axis and a right only channel will make the equi...

Page 35: ...mescales show the present average loudness The radar displays either Momentary short term or integrated EBU loudness over time In the VB440 there are three optional modes Full EBU 9 and EBU 18 All thr...

Page 36: ...Ancillary The Ancillary view offers two tabs Overview and SCTE 104 36 VB440 Studio Probe User s Manual v6 0 Bridge Technologies Co AS...

Page 37: ...The data identification SDID The second data identification Spec The specification standard or recommendation that describes the technical structure of this DID SDID Application Reference for that DID...

Page 38: ...SCTE 104 Shows an overview of the SCTE 104 messages that are transmitted 38 VB440 Studio Probe User s Manual v6 0 Bridge Technologies Co AS...

Page 39: ...ique hardware key To activate your licence your sales representative needs to receive the key to issue the software license Paste the license key in the box and press Add license Please note that the...

Page 40: ...ntries first with options to filter at the top of the page Networking At the top part of the page two performance graphs are displayed Firewall NOTE do not enable firewall without knowing how to confi...

Page 41: ...allowed addresses There are two options to give access to the Entire Subnet or specify a Range of IP addresses To allow other services than those who are pre defined click Add Services A New popup win...

Page 42: ...kpit Click on the Add VLAN to access the configuration page Select an interface from the parent list assign a VLAN Id and a name or use the predefined By default a name will be filled in by concatenat...

Page 43: ...ick directly on an existing account to change account settings feks setting a new password Diagnostic report This page is used to create diagnostic reports which can be used by your support team to de...

Page 44: ...robe up to date with all updates Available updates Lists the packages that require updating Each package is listed with name version severity and details Security fixes are usually marked with a pink...

Page 45: ...s an in browser terminal with a command line session to the Cockpit system In this terminal you can run commands from your signed in user account VB440 Studio Probe User s Manual v6 0 Bridge Technolog...

Page 46: ...ummary The intention of this page together with the alarm list is to provide enough information for the operator to immediately see if there is anything seriously wrong with one or more input streams...

Page 47: ...ast clicked If no time is indicated the counters have not been cleared since VB440 startup reboot time Probe Name The VB440 name as defined by the operator in the Setup Params view Location The VB440...

Page 48: ...can be entered here The search field in the upper right corner of the view allows the user to type a text string and the multicast list is updated to display only streams matching the specified text...

Page 49: ...nt View Address The IP address of the unicast or multicast Port The port number of the unicast or multicast Ethernet thresholds The Ethernet thresholds specify various error limits Selectable Ethernet...

Page 50: ...t any time SSM source 3 Additional SSM source address SSM source 4 Additional SSM source address SSM source 5 Additional SSM source address Uncompressed Stream content Tell the probe which kind of str...

Page 51: ...Sender type Specifies what kind of timing model the transmitter has This has effect for the 2110 21 measurements TR offset mode Toggle between the default value based on the signal type and a specific...

Page 52: ...40 Multicast stream lists OTT channel lists and scheduling information can also be exported to and imported from the VB288 Objective QoE Content Extractor You can also import and export license and so...

Page 53: ...form update and wait until it finishes This might take a long time several minutes Please do not turn off or reboot the machine while the update is running It might be advisable to reboot the server a...

Page 54: ...Please refer to the document Eii External Integration Interface for detailed information about Eii 54 VB440 Studio Probe User s Manual v6 0 Bridge Technologies Co AS...

Page 55: ...number 0 127 Priority1 0 255 Sync Interval 7 to 1 Slave clock only Will always act like a slave and receive time from a master clock Preferred grand master Only acts as a master It has the ability to...

Page 56: ...lues packets per second and seconds between packets Sync interval indicates how often VB440 synchronizes to the master clock The Announce Interval specifies how often master clocks should announce the...

Page 57: ...y 1 and 2 are user settable fields they can have an impact on the BMCA selection For example If only one clock is configured with the value 1 high priority in the Priority 1 field and others with the...

Page 58: ...rom the Virtual Receiver Buffer There are two different read schedules the Gapped illustrated in the figure and the Linear As opposed to the Linear which sends equally spaced packets throughout the wh...

Page 59: ...an not be higher than that For example at 50fps the RTP counter will tick 1800 ticks per frame 90kHz 50FPS 1800 The time interval between the packet arrival and start of packet read constitutes the Ma...

Page 60: ...n the standard and scales according to sender type The sender needs to ensure that the packets enter the buffer and are ready to be drained at Start Of Packet Read for the VRX to neither overflow or u...

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