The message "503 service unavailable" is appearing in the browser.

Solutions ID:    KB2506
Version:    5.0
Status:    Published
Published date:    03/02/2009
Updated:    10/23/2013

Problem Description

Why is the following message appearing when users go to any website?

503 service unavailable


This error message is specific to admission control.  This can occur in several ways:

  • Guaranteed Rate Policy
  • Dynamic Partition
  • Never-Admit Policy
  • Class license
  • Policy Flow Limit

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