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PDP allows bandwidth update request when the bandwidth is unavailable in Lync Server 2010

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Symptoms

Consider the following scenario:
  • The Call Admission Control (CAC) feature is enabled in a Microsoft Lync Server 2010 environment.
  • User A is located in central site A that has Policy Decision Point (PDP) A. User B is located in central site B that has PDP B.
  • There is split ownership of links between these PDPs.
  • User B makes a call to user A.
  • User B's client sends a CAC messages to PDP B in central site B. The CAC message traverses over several links that part of them are owned by PDP A.
  • User B's client sends a bandwidth update request to PDP B. The bandwidth cannot be accommodated by the links owned by PDP A.
In this scenario, PDP B allows the bandwidth update request that exceeds the bandwidth limit that is provisioned for links owned by PDP1. The issue leads to poor call quality.

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Resolution

To resolve this issue, install the following cumulative update:
2502809 Description of the cumulative update for Lync Server 2010, Core Components: November 2011

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Keywords: kbqfe, kbsurveynew, kbfix, kbexpertiseadvanced, kb

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Article Info
Article ID : 2621844
Revision : 1
Created on : 1/7/2017
Published on : 11/19/2011
Exists online : False
Views : 322