The Top Interfaces report helps you understand voice gateway usage and provides individual gateway voice interface statistics. Use this report to find underused interfaces and look for overburdened interfaces, where performance can deteriorate.
Note: The Top Interfaces report supports Cisco Unified Communications Manager environments only.
Verify that all known gateway voice interfaces have the number of channels correctly configured. UC Monitor uses the known channel capacity for each interface to calculate usage as a percentage of capacity. This report is less accurate when the device MIB incorrectly reports the capacity of the gateway voice channel.
The Voice Interface Top Interfaces report contains the following information. Some of the metrics appear in the Interface Utilization view, which is not displayed by default. Click the Settings link to display the view.
The number of call minutes used to calculate usage statistics. This value provides a sense of the scope of activity and helps determine the significance of the data as it relates to sample size.
The number of call minutes that were supported during the selected time period. The capacity is discovered during monitoring or is manually supplied during configuration.
An estimation of the probability that a VoIP call receives a busy signal. The GoS value (a decimal fraction) is always expressed with reference to the busy hour when the traffic intensity is the greatest. GoS is reported from the perspective of the origination Location or gateway device (the outgoing direction).
The highest recorded usage during the selected time period, expressed as a percentage of capacity. Maximum usage is a good indicator of potential capacity issues. Maximum usage is significant because it often indicates the usage during the “busy hour” of the day. Maximum usage is computed as capacity multiplied by the time frame.
The name of the interface. Click to drill down into an hourly breakdown of usage for this interface. By default, the interface name is based on information from the gateway and the naming convention for the trunking equipment. However, a UC Monitor administrator can change the name of a discovered gateway voice interface during voice gateway configuration.
(Cisco only) The usage of all gateway voice interfaces on all monitored gateway devices. All known interfaces are listed. Interfaces with the highest usage are listed first.
The average usage during the time period. Expressed as a percentage of capacity. Average usage is computed as capacity divided by the time frame.
Tip: To identify underused interfaces, sort this column to see the least used interfaces first.
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