Microsoft KB Archive Search

Notice: This website is an unofficial Microsoft Knowledge Base (hereinafter KB) archive and is intended to provide a reliable access to deleted content from Microsoft KB. All KB articles are owned by Microsoft Corporation. Read full disclaimer for more details.

  1. Home
  2. PDP allows bandwidth update request when the bandwidth is unavailable in Lync Server 2010

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

View products that this article applies to.

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.

↑ Back to the top

Resolution

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

↑ Back to the top

Keywords: kbqfe, kbsurveynew, kbfix, kbexpertiseadvanced, kb

↑ Back to the top

Article Info
Article ID : 2621844
Revision : 1
Created on : 1/7/2017
Published on : 11/19/2011
Exists online : False
Views : 321