Exceeding Location Bandwidth

Last Updated : Dec 11, 2012 |

This event is related to the Call Admission Control functionality for Session Manager.

The used bandwidth for a specific location has exceeded an allotment threshold. Additionally, the alarm indicates which multimedia pools are being exceeded.

You can configure the thresholds to be configured for each location and for each pool as well as the duration for which the threshold must be exceeded before the alarm is generated on System Manager. The default threshold for each pool is set to 80%.

The alarm is centralized and is only seen from one Session Manager instance. If the alarming Session Manager goes down, another Session Manager takes over the alarming role.

When the bandwidth is at 100% capacity for a particular location, new calls are not allowed on that location and are denied.

This alarm may be caused by one of the following:

  • There is more simultaneous call traffic than anticipated at a specific location.

  • The provisioned bandwidth for a specific location is insufficient for the actual carried traffic.

  • The provisioned bandwidth for a specific location is correctly set according to LAN characteristics. However, traffic exceeds actual network capacity.

Troubleshooting Exceeding Location Bandwidth Alarms

Procedure

  1. If this is an undesired location from which to alarm, the location can be disabled from alarming in one of two ways:
    1. Set the thresholds to Disabled - this only applies to a single location.
    2. On the Session Manager Administration screen, check the Disable Call Admission Control Threshold Alarms box - this applies to all locations.
  2. Check the bandwidth threshold values for the pools to ensure they are appropriate. Also ensure the Latency before Alarm Trigger time is appropriate.
  3. Ensure the traffic is consistent with the bandwidth capacity.
  4. Consider rerouting part of the traffic through a different, under-utilized location.
  5. Increase bandwidth provisioning if allowed by the network.
  6. Consider splitting the location into two or more different locations and route traffic accordingly.