preYarn

Preyarn is an application targeting Cisco partner presales engineers. It is a freestanding application running on a Windows or Mac PC that pulls configuration from a CUCM cluster, then analyses it and provides a summary of the configuration to assist in giving an accurate view of the system to assist in the quoting of a migration.

In addition to Configuration analysis providing insight into CUCM configured devices and features, it also provides EOL advice and MPP compatibility on end devices, usage analysis of licensing, registered devices at a point in time, firmware versions.

Furthermore, CDR data is analysed to understand Trunk and bandwidth (erlang) requirements, intersite traffic, Inactive lines

Preyarn can also provide an export of data in a Webex MT load format to assist in the migration of data from CUCM to Webex MT, providing CSV loaders for Users, Devices and other into Control Hub and also a summary of location specific data such as number range parsing to assist in the configuration of locations.

Setting up preYarn

Open the preYarn application from the dCloud desktop.

Enter Encryption credentials, these credentials can be anything but needs to be used in consecutive uses of preyarn, then select

Press

, enter details for CUCM Publisher, then select

preYarn Analysis

Now highlight the server just added from server list, then highlight the server just added from Server List, select

A check will now take place ensuring that the connectivity to CUCM is OK, select

Now choose path where the created analysis file will be placed

, then define the file name as required, or accept the prepared name, select

Now select the default country for the phone numbers, noting that countries may be also be selected on a site (Device Pool) basis, then

On completion of the analysis, The analysis result page details the extracted and analysed data, including start and finish time of analysis, duration of the same and the location of analysis file. Below this, there are four buttons for export of output to Excel, Analyse Phones, Analyse CDR and Create Webex Calling export.

Select

which will pull configuration directly from all physical phone handset, including serial numbers and versions, this info is then used to determine MPP compatibility of the handsets and more.

Note: Handsets must have Web enabled to allow for the Analyse Phones functionality

CDR Analysis

CDR file

To Analyse data from CDR, select

, then define the path where CDR data file/s exist

Note: the CDR must be extracted manually from CUCM and file/s placed in directory that can be accessed from the preYarn application

Now define the timeframe for CDR analysis, then select

On completion of the CDR, all the analysis data may be viewed on the summary page, it is divided into two sections with the top section displaying a brief summary of analysed data that may be expanded and details viewed by selecting the corresponding

button

Further down the page is a more detailed view of the findings

Export of Analysis

The data from the analysis may be saved in an Excel file by selecting

, then selecting the path where the sheet will be stored

Webex Calling MT Export

To create a Webex MT export, from which the output CSV files may be used to import into Webex MT Control Hub, select

, this will bring up screen allowing for the mapping of CUCM Device Pools to Webex Calling Locations, the specification of a default Webex Calling Location and subscription ID

Further down the screen, toggles and freeform text to globally define features and settings that cannot be mapped from CUCM data. Select toggles and enter freeform text as required, then

Select folder for the export

In the folder defined in output path from previous, find CSV files for User and Device Load and a report file with additional info to assist with the load into Contol Hub

If any of the settings need to be changed for individual users, this may be completed by changing manually in the CSV as required before importing to Control Hub