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Measures reported by BBerryMdsUsrTest
Upon the receipt of push requests from applications, the MDS Connection Service pushes application data to each user's handheld device. By monitoring the communication between MDS and every user's BlackBerry device, you can isolate communication bottlenecks and connections on which a large amount of data is transmitted. This test enables you to do just that. With the help of the metrics reported by this test, you can instantly identify the user (i.e., the device) to whom the BlackBerry MDS takes too long to deliver data, and the user (i.e., the device) to whom an unreasonably large amount of data is being transmitted. Network links to such devices can then be investigated for congestions and the flow of data via such links can be regulated, so as to optimize performance.
The measures made by this test are as follows:
| Measurement |
Description |
Measurement Unit |
Interpretation |
| Connection_duration |
Indicates the duration for which this user was connected to MDS.
|
Secs |
A very high value for this measure indicates that the user has remained connected to the MDS for a very long time. This could be because of a delay in delivering data to the user's handheld, which in turn can be caused by a network congestion or a poor network link. |
| Size_of_mdsconn_pkts_trn |
Indicates the size of the packets that were transmitted from the BlackBerry MDS Connection Service to this user's handheld device during the last measurement period. |
KB |
The BlackBerry® MDS Connection Service controls the flow of data that is sent to the BlackBerry device. This flow control allows the BlackBerry MDS Connection Service to minimize the amount of data that is sent over the wireless network, and can help to reduce the impact of pushing data to BlackBerry devices that are out of network coverage, turned off, or otherwise unavailable.
The BlackBerry MDS Connection Service sends data to each BlackBerry device specified in the push request as a series of packets.
To control the flow of pushed data, the BlackBerry MDS Connection Service initially sends a maximum of five packets. The BlackBerry MDS Connection Service does not send additional packets until the BlackBerry device returns an acknowledgment that the initial packets were received. By default, the BlackBerry MDS Connection Service limits the size of packets to 29 KB for BlackBerry® Enterprise Server 4.0, or 1 KB for BlackBerry Enterprise Server 4.1 or later. |
| No_of_mdsconn_pkts_trn |
Indicates the total number of packets that were transmitted from the BlackBerry MDS Connection Service to this user's BlackBerry handheld device during the last measurement period. |
Number |
| Size_of_mdsconn_pkts_rcd |
Indicates the size of the packets that were received by the Blackberry MDS Connection Service from this user's BlackBerry handheld device during the last measurement period. |
KB |
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| No_of_mdsconn_pkts_rcd |
Indicates the total number of packets that were received by the BlackBerry MDS Connection service from this user's BlackBerry handheld device during the last measurement period. |
Number |
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