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Russell H.
Russell H., Service Tech
Category: TV
Satisfied Customers: 10147
Experience:  8+ years of professional experience
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I am ***** ***** Rosari
, we are a manufacturer of an

Customer Question

Customer: Hi I am ***** ***** Rosari
JA: Thanks. Can you give me any more details about your issue?
Customer: we are a manufacturer of an integrated interactive tv sokution ( and have a hotel installed based on HP switches we are running wifi, videosurveillance, offie data and IPTV on the network (all separated by VLANs) and now we are facing on this new network IPTV pixelation We need to know if the network (Multicast/IGMP) has been setup correctly and need urgent help on this !
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Submitted: 1 year ago.
Category: TV
Expert:  Russell H. replied 1 year ago.

Hi, thank you for contacting My name is Russell. I will do my best to provide the right answer to your question.

If the network is not transmitting well, if some frames or packets are dropped or lost, then pixelation is the usual result, or 'blockiness' (i.e. coarsening of the detail to the point of the pictures looking like a bunch of colored squares), etc.

The network's capacity is probably overloaded. (That is, too much bandwidth needed, but not enough throughput to meet the need.) Also, there might be a defective component in it, that either causes slowing or loss of packets. But lack of sufficient bandwidth is the likeliest cause.

If you're getting a picture at all even part of the time... then the network itself is set up well enough to transmit. I would say that network setup isn't the problem, if a picture can be seen or video can be seen (even if pixelated, blockiness-showing, etc.)

Customer: replied 1 year ago.
Thanks for your reply. I think (by experience) the problem resides in the configuration (QoS part) of the network. Can you provide a "state of the art" configuration example for HP switches or some commands we can submit on the network to analyze if the querier/snooping (igmp) config has been correctly made?
Expert:  Russell H. replied 1 year ago.

I admit, frankly and honestly, that I cannot provide such a config. example for an HP switch.

(What model of HP switch is being used? perhaps if it were a specific model I could offer help... or at least, if I Opt Out of this case, it may help focus the attention of a slightly more qualified Expert here, to know precisely what switch he's going to be advising about.)

Customer: replied 1 year ago.
Ok, what do you suggest then? You think we can get someone on this at justanswer ?
Expert:  Russell H. replied 1 year ago.

Yes. But please state the model of the HP switch(es) involved, if you have any idea what it/they is/are. Thanks. (I have Opted Out, in favor of an Expert who can provide a config. example for an HP Switch, in a video-abundant network where pixelation of video is happening.)

Thank you for your patience. (Though Opted Out, I can still see your postings and respond as necessary.)