| Measurement |
Description |
Measurement
Unit |
Interpretation |
| Handheld_init_conns |
Represents the number of handheld-initiated MDS connections initiated during the last measurement period.
|
Number |
This is a good indicator of the workload on the BlackBerry MDS. |
| Push_server_conns |
The number of connections the BlackBerry MDS Connection Service central push server has established with BlackBerry devices during the last measurement period
|
Number |
'Push' technology is a data distribution technology in which selected data is automatically delivered into a mobile phone/computer at prescribed intervals or based on some event that occurs.Using the BlackBerry Manager, you designate one BlackBerry MDS Connection Service in a BlackBerry Domain as the central push server. The central push server receives push requests from applications. It establishes a connection to the BlackBerry device through which applications send data.
|
| Avg_packet_size_from_dev |
The average data packet size received from handheld devices during the last measurement period
|
MB |
|
| Avg_packet_size_from_pus |
The average packet size of push data sent from the MDS to handhelds during the last measurement period
|
MB |
Typically, the enterprise application residing behind a corporate firewall sends an HTTP POST request to the BlackBerry MDS Connection Service central push server over the web server listen port (default 8080). The central BlackBerry Connection Service push server checks the central BlackBerry Configuration Database for information about the recipients who are defined in the push application. The BlackBerry MDS Connection Service responds to the push application to acknowledge that it is processing the request, and then closes the connection. The central BlackBerry MDS Connection Service push server routes the content to the push server connection listen port (default 8080). The BlackBerry MDS Connection Service converts the content for viewing on the BlackBerry device and sends the content to the BlackBerry Dispatcher.The value of this measure indicates the amount of data traffic that is handled by the BlackBerry MDS Services component while routing, converting, and eventually pushing the content to the handheld device.
|
| Packets_refused_by_SRP |
The number of packets sent by MDS that were refused by the wireless network during the last measurement period
|
Number |
Server Routing Protocol (SRP) is a unique identifier used to communicate and authenticate the BlackBerry Enterprise Server with the BlackBerry relay. The BlackBerry relay is a key component of the BlackBerry system. It receives messages from within a corporate network, translates the messages, and routes them to the wireless network for delivery to the handheld device. SRP needs to be allowed through your company firewall. Therefore, if the value of this measure is very high, it could indicate that your firewall rules might have to be fine-tuned to allow bi-directional traffic from and to the SRP host. Also, check whether the SRP status is disconnected, as this could also obstruct the movement of data packets into an SRP host.
|
| Invalid_packets_received |
The number of invalid packets received by the MDS during the last measurement period
|
Number |
A very high value of this measure could indicate a problem.
|
| Successful_connections |
The number of successful connections initiated by MDS with another address or service during the last measurement period
|
Number |
|
| Failed_connections |
The number of connections the MDS attempted with another address or service, but failed currently
|
Number |
Ideally, the value of this measure should be low.
|
| Truncated_connections |
The number of connections that the MDS encountered during the last measurement period
|
Number |
Ideally, the value of this measure should be low.
|