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<table border="0" cellpadding="3" cellspacing="1" width="100%" class="forumline"> <tr> <th class="thCornerL" width="22%" height="26">Autor</th> <th class="thCornerR">Wiadomość</th> </tr> <tr> <td width="22%" align="left" valign="top" class="row1"><span class="name"><a name=""></a><b>yan1m0r1</b></span></td> <td class="row1" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="http://picsrv.fora.pl/subSilver/images/icon_minipost.gif" width="12" height="9" alt="Post" title="Post" border="0" /><span class="postdetails">Wysłany: Pią 5:14, 20 Maj 2011<span class="gen"> </span> Temat postu: jordan retro 11 Measuring Iptv Qos (quality Of Ser</span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">lity Of Service, being someone fashionable oftens makes people automatically think of using pre-existing measurement techniques. This basic beginning point for QOS dimension is where most of the confusion is generated. <br />In the same access that when companies began moving from Analogue to digital announce signals, the natural tendancy of the existing engineers was to ambition to weigh the new digital marking along converting it behind to parallel and then using their existing equipment. IPTV QOS has occasioned a lot of the same theory, whereby engineers with a network background want to measure network statistics, and engineers with a video background absence to measure video statistics. The sometime (network engineers) can happily take their measurements from the existing network infrastructure, but get not consciousness for what parcels on the network relate to what video signals. The video people want to become the IPTV signal back into its digital video format (converting it from IP to Video),<a href="http://www.boxzi.com/air-jordan-11" target="_blank" class="postlink">jordan retro 11</a>, which really misses the point that entire you're actually detecting out is how well the converting apparatus works (a piece of test equipment won't be comparative to the way a STB (set altitude carton) would decipher the signal. Thus, you have two separate reaches to the same problem - nor of which is really ideal. <br />Now,<a href="http://anniversaryforum.com/index.php?topic=58489.msg63223#msg63223" target="_blank" class="postlink">low jordans Taking Advantage Of The Google Tool - What You Can Do To Get Notice</a>, there IS a place for existing test equipment (network test equipment is great for data vehicle as it forever was, and Transport Stream (digital video) analysers are great at your Head-End (where the video content originates)and other video aggregation points in array to validation that the video into your IP network was agreeable), so it's no time to discard it away, it's just not the right tool for IPTV QOS. <br />With those comments out of the way we can push amenable (it's tough to shake when you still have one foot in your old mindset). <br />Depending on who you are,<a href="http://www.boxzi.com/air-jordan-11" target="_blank" class="postlink">air jordan 11</a>, you could quite well be concerned with fair one chapter of one IPTV system or the plenary system, so we'll damage it into the essence problem and what that method at each place in the web (we'll apportion the network 4 test points: 1) Head End 2) Core Network 3) Network Edge 4) Customer Home). <br />1) Head End. <br />This might concern you if you are responsible for creating, providing, or receiving video from a Head End. <br />A Head End can consist of everything from vocational video encoders to VOD Servers (Video On Demand), and could be in one of numerous video formats, compression types, bitrates etc. They could be Unicast or Multicast, UDP,<a href="http://chopperdogs.net/talkshit/index.php?topic=198594.msg207641#msg207641" target="_blank" class="postlink">jordans because inexpensive Adware Problems Learn How To Easily Fix Them Today</a>, RTP or a proprietary mechanism (As in the circumstance of MSTV). <br />Whatever the position, it's a good mind to take steps to ensure that the Head End is robust and that the video encoding devices are reliable. A problem at the Head End affects everybody down the line,<a href="http://www.boxzi.com/air-jordan-13" target="_blank" class="postlink">jordan retro 13</a>, right to the purchaser. (we'll presume that manifold 'redundant' systems are in place to dodge this type of problem where possible) <br />Having built the Head End system with a lusty structure, the last object (and the major an because us) is to monitor the Head End IP movie stream output apt ensure that this first point where the video namely IP encapsulated has been done adequately and that the recess of the IPTV infrastructure can depend above this input. <br />Note: One common mistake at this point (and somewhere) is to have some sort of round-robin system in place where not all of the video flows are measured in the meantime - this ought only be done if indeed needful as one of the 'issues' with the ecology of IP delivery over a network is that impairments caused to the signal in the IP domain have a non-deterministic affect on the video flows. This means that meantime you're looking at 5 of 100 flows, you could be having problems on some promiscuous number of other flows which you wouldn't watch - unless you monitor ALL flows simultaneously. <br />2) Core Network. <br />Hopefully the treads on will have been done,<a href="http://girlsfightboys.com/profile_blogs/yan3a6f4/&action=view&id=148532" target="_blank" class="postlink">air jordan 5 How Do I Delete Spyware From My Noteb</a>, so if you're concerned with the core network, your main go involves act your own verification t</span></td> </tr> </table></td> </tr> <tr> <td colspan="2" height="1" class="spaceRow"><img src="http://picsrv.fora.pl/subSilver/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> </table>
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