Mino – The UC Guy

Microsoft Unified Communications Blog

Lync Server 2010 Media Traffic Network Usage

Posted by Mino on November 5, 2010

“This is RTM pre-release documentation information and subject to change in General Availability (GA) release by December 2010 , I will update this post if any changes are required ”

When planning for media bandwidth usage per scenario, use the following tables, which describe the average amount of bandwidth used per media type.

Audio/Video Capacity Planning, Peer-to-Peer Sessions

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Audio/Video Capacity Planning, Conferences

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Audio Capacity Planning, PSTN

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The network bandwidth numbers in these tables represent one-way traffic only and take silence suppression into account.

When you calculate the actual bandwidth usage for a certain scenario, it is important to understand the actual media flows, which are as follows:

In a two-party scenario:

  • Users send audio streams only while they speak.
  • Both participants receive audio streams.
  • If video is used, both users send and receive video streams during the entire call.

In a Conferencing scenario (that is, a call with more than two participants):

  • Users send audio streams only while they speak.
  • All participants receive audio streams.
  • If video is used, only two participants upload a video stream at a time (that is, the active speaker and the previous active speaker
  • If video is used, all participants receive video streams.
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6 Responses to “Lync Server 2010 Media Traffic Network Usage”

  1. […] Lync Server 2010 Media Traffic Network Usage « Mino ­ The UC Guy Posted on November 5, 2010 by johnacook https://theucguy.wordpress.com/2010/11/05/lync-server-2010-media-traffic-netwo… […]

  2. […] Lync Server 2010 Media Traffic Network Usage « Mino ­ The UC Guy Posted on November 6, 2010 by johnacook https://theucguy.wordpress.com/2010/11/05/lync-server-2010-media-traffic-netwo… […]

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