eG Monitoring
 

Measures reported by BB12XMDSStatTest

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.

This test monitors the data packets sent to BlackBerry devices on push connections initiated by the BlackBerry MDS Connection Service and reports if there is SRP (Server Routing Protocol) connection failure and the number of packets/ connections that have been refused, expired, and invalid.

Outputs of the test: One set of results for Blackberry UEM 12.x device.

The measures made by this test are as follows:

Measurement Description Measurement Unit Interpretation
packetsSizeRcvdfromDvcs Indicates the total size of the data packets received from all BlackBerry devices during the last measurement period. MB

These packets are received from all Blackberry devices on connections initiated by BlackBerry devices, in KB and it is converted to MB.
packetsSizeSentToDevices Indicates the total size of the data packets sent to BlackBerry devices during the last measurement period. MB

These packets are sent to all Blackberry devices on connections initiated by BlackBerry devices, in KB and it is converted to MB.
packetsRcvdFromDevices Indicates the total number of data packets received from all BlackBerry devices during the last measurement period. Number

These packets are received on connections initiated by BlackBerry devices.
packetsSentToDevices Indicates the total number of the data packets sent to BlackBerry devices during the last measurement period. Number

These packets are sent on connections initiated by BlackBerry devices.
pushConnectionsByDevices Indicates the total number of push connections initiated by BlackBerry devices during the last measurement period. Number

 
packetsDispatchrDeclined Indicates the number of packets that the BlackBerry Dispatcher had declined. Number

The BlackBerry dispatcher may reject a data packet if it does not recognize the format of a data packet or does not recognize the device transport key that protects the data packet.
invalidPacketsToDisptchr Indicates the number of invalid packets sent to the BlackBerry Dispatcher. Number

A very high value of this measure could indicate a problem.
expiredIPPPPackets Indicates the number of expired IPPP packets. Number

Ideally this value must be zero.

A high value might result in data loss.
truncatedConnections Indicates the number of truncated connections. Number

Ideally, the value of this measure should be low.
timeoutConnections Indicates the number of push connections that could not be delivered within the default timeout. Number

This measure is reported only for push messages that do not have a specified delivery timeout.
refusedIPPPConnections Indicates the number of refused IPPP connections. Number

Ideally, the value of this measure should be low.
successSRPConnections Indicates the number of successful SRP (Server Routing Protocol) connections to the BlackBerry Dispatcher. Number

The BlackBerry Dispatcher handles traffic to the BlackBerry Infrastructure. It compresses/decompresses and encrypts/decrypts wireless data. The BlackBerry Dispatcher handles all Server Routing Protocol (SRP) connections from the BlackBerry MDS Connection Service and many other components of the BlackBerry Infrastructure. The MDS Connection Service (on the BlackBerry Enterprise Server) connects to the BlackBerry Dispatcher through specific ports and communicates with the BlackBerry Infrastructure through the BlackBerry Router using a unique SRP identifier that the BlackBerry Dispatcher establishes.

Once the SRP identifier is established, the BlackBerry MDS sends a basic information packet to the BlackBerry Infrastructure via the BlackBerry Router; this packet includes version information, the SRP identifier established by the BlackBerry dispatcher, and other information that is required to open an SRP connection. If the packets so received are valid, then the BlackBerry infrastructure will send basic information packets to the BlackBerry MDS, therey successfully opening the SRP connection.

On the other hand, if the BlackBerry Infrastructure receives unrecognized packets from the BlackBerry MDS, then the SRP is connection is closed. Also, if a BlackBerry MDS uses the same SRP authentication key and SRP identifier to connect to (and then disconnect from) the BlackBerry Infrastructure 5 times in 1 minute, the BlackBerry Infrastructure deactivates the SRP identifier to help prevent a potentially malicious user from using the SRP identifier to create conditions for a DoS attack.
failureSRPConnections Indicates the number of failed SRP connections to the BlackBerry Dispatcher. Number

The BlackBerry Dispatcher handles traffic to the BlackBerry Infrastructure. It compresses/decompresses and encrypts/decrypts wireless data. The BlackBerry Dispatcher handles all Server Routing Protocol (SRP) connections from the BlackBerry MDS Connection Service and many other components of the BlackBerry Infrastructure. The MDS Connection Service (on the BlackBerry Enterprise Server) connects to the BlackBerry Dispatcher through specific ports and communicates with the BlackBerry Infrastructure through the BlackBerry Router using a unique SRP identifier that the BlackBerry Dispatcher establishes.

Once the SRP identifier is established, the BlackBerry MDS sends a basic information packet to the BlackBerry Infrastructure via the BlackBerry Router; this packet includes version information, the SRP identifier established by the BlackBerry dispatcher, and other information that is required to open an SRP connection. If the packets so received are valid, then the BlackBerry infrastructure will send basic information packets to the BlackBerry MDS, therey successfully opening the SRP connection.

On the other hand, if the BlackBerry Infrastructure receives unrecognized packets from the BlackBerry MDS, then the SRP is connection is closed. Also, if a BlackBerry MDS uses the same SRP authentication key and SRP identifier to connect to (and then disconnect from) the BlackBerry Infrastructure 5 times in 1 minute, the BlackBerry Infrastructure deactivates the SRP identifier to help prevent a potentially malicious user from using the SRP identifier to create conditions for a DoS attack.