Topic Last Modified: 2012-10-01

The Peer-to-Peer Activity Diagnostic Report provides information about the success and failure of your peer-to-peer communication sessions. Note that Microsoft Lync Server 2013 distinguishes between different kinds of failure:

Note that the Success, Expected failure, and Unexpected failure metrics might not add up to the Total sessions metric. For example, in the preceding illustration, we have the following values:

Successes Expected failures Unexpected failures Total sessions

2024

469

16

2521

If you add 2024 + 469 + 16 you get a total of 2,509 sessions, yet the Total sessions column shows a total of 2,521 sessions. The "missing" 12 sessions are sessions that the system was unable to categorize as successful or unsuccessful. That will sometimes be the case when a third-party product introduces a new diagnostic code that is unfamiliar to Lync Server. When that happens, calls made using that product, and reporting that diagnostic code, cannot always be categorized as being a Success, an Expected failure, or an Unexpected failure.

Accessing the Peer-to-Peer Activity Diagnostic Report

The Peer-to-Peer Diagnostic Report is accessed from the Monitoring Reports home page. You can access the Failure Distribution Report by clicking either of the following metrics:

  • Unexpected failure volume

  • Expected failure volume

Making the Best Use of the Peer-to-Peer Activity Diagnostic Report

There are a number of ways you can filter the Peer-to-Peer Activity Diagnostic Report but, by default, those filtering options are hidden from view. To view the filtering options available to you, click the Show/Hide Parameters button in the upper right-hand corner of the report window. Once you do that the filtering options will be available for use.

Filters

Filters provide a way for you to return a more finely-targeted set of data or to view the returned data in different ways. For example, the Peer-to-Peer Activity Diagnostic Report enables you to filter on such things as the session modality (for example, instant messaging, file transfer, or application sharing). You can also choose how data should be grouped. In this case, calls are grouped by hour, day, week, or month.

The following table lists the filters that you can use with the Peer-to-Peer Activity Diagnostic Report.

Peer-to-Peer Activity Diagnostic Report Filters

Name Description

From

Start date/time for the time range. To view data by hours, enter both the start date and time as follows:

7/7/2012 1:00 PM

If you do not enter a start time, the report automatically begins at 12:00 AM on the specified day. To view data by day, enter just the date:

7/7/2012

To view by week or by month, enter a date that falls anywhere within the week or month that you want to view (you do not have to enter the first day of the week or month):

7/3/2012

Weeks always run from Sunday through Saturday.

To

End date/time for the time range. To view data by hours, enter both the end date and time as follows:

7/7/2012 1:00 PM

If you do not enter an end time, the report automatically ends at 12:00 AM on the specified day. To view data by day, enter just the date:

7/7/2012

To view by week or by month, enter a date that falls anywhere within the week or month that you want to view (you do not have to enter the first day of the week or month):

7/3/2012

Weeks always run from Sunday through Saturday.

Interval

Time interval. Select one of the following:

  • Hourly (a maximum of 25 hours can be displayed)

  • Daily (a maximum of 31 days can be displayed)

  • Weekly (a maximum of 12 weeks can be displayed)

  • Monthly (a maximum of 12 months can be displayed)

If the start and end dates exceed the maximum number of values allowed for the selected interval, only the maximum number of values (starting from the start date) is displayed. For example, if you select the Daily interval with a start date of 7/7/2012 and an end date of 2/28/2012, data is displayed for the days 8/7/2012 12:00 AM to 9/7/2012 12:00 AM (that is, a total of 31 days' worth of data).

Pool

Fully qualified domain name (FQDN) of the Registrar pool or Edge Server. You can either select an individual pool or click [All] to view data for all the pools. This drop-down list is automatically populated for you based on the records in the database.

Modality

Indicates the type of communication activity that took place. Select one of the following:

  • [All]

  • Instant messaging

  • File transfer

  • Application sharing

  • Audio

  • Video

Metrics (per modality)

The following table lists the information provided in the Peer-to-Peer Activity Diagnostic Report for each modality.

Metrics (per modality)

Name Can you sort on this item? Description

Success volume

No

Total number of successful peer-to-peer sessions.

Success percentage

No

Percentage of peer-to-peer sessions that completed with significant problems. Calculated by dividing the Success volume by the Total sessions.

Expected failure volume

No

Total number of sessions where an "expected failure" occurred.

An expected failure is a failure that is expected to happen. For example, if a user has set his or her status to Do Not Disturb you would expect any call to that user to fail.

Expected failure percentage

No

Percentage of peer-to-peer sessions that experienced an expected error. Calculated by dividing the Expected failure volume by the Total sessions.

Unexpected failure volume

No

Total number of sessions where an "unexpected failure" occurred.

An unexpected failure is a failure that occurs in what would appear to be an otherwise healthy system. For example, a call should not be terminated if the caller is placed on hold. If that occurs, that would be flagged as an unexpected failure.

Unexpected failure percentage

No

Percentage of peer-to-peer sessions that experienced an unexpected error. Calculated by dividing the Unexpected failure volume by the Total sessions.

Total sessions

No

Total number of sessions, including successful sessions, failed sessions (both expected failures and unexpected failures), and uncategorized sessions.