Blackberry Enterprise Server Components; Blackberry Dispatcher; Blackberry Messaging Agent - Blackberry ENTERPRISE SERVER FOR IBM LOTUS DOMINO - - PERFORMANCE BENCHMARKING GUIDE Manual

BlackBerry Enterprise Server components

BlackBerry Dispatcher

BlackBerry Messaging Agent

BlackBerry Router
BlackBerry Controller
BlackBerry MDS Services
BlackBerry MDS Connection Service
BlackBerry Attachment Service
BlackBerry Synchronization Service
BlackBerry Policy Service
BlackBerry Collaboration Service
BlackBerry Dispatcher
The BlackBerry Dispatcher handles traffic to the BlackBerry Infrastructure. It compresses/decompresses and
encrypts/decrypts wireless data. The BlackBerry Dispatcher handles all internal Service Routing Protocol (SRP)
connections from the BlackBerry Messaging Agent and also manages communication from the BlackBerry MDS
Connection Service, the BlackBerry Synchronization Service, the BlackBerry Policy Service, and the BlackBerry
Collaboration Service to the BlackBerry Infrastructure. These components connect to the BlackBerry Dispatcher
through specific ports and communicate with the BlackBerry Infrastructure through the BlackBerry Router using a
unique SRP identifier that the BlackBerry Dispatcher establishes.
BlackBerry Messaging Agent
The BlackBerry Messaging Agent connects to the messaging and collaboration server to provide message,
calendar, address lookup, attachment, and wireless encryption key generation services. The BlackBerry Messaging
Agent also acts as a gateway for the BlackBerry Synchronization Service to access personal information
management (PIM) data on the messaging server. It synchronizes configuration data between the BlackBerry
Configuration Database and the BlackBerry profiles database.
The BlackBerry Messaging Agent polls user mailboxes for new messages every 20 seconds using an efficient API
call to determine if the mail database has changed. When the BlackBerry Messaging Agent detects that the
database has changed, it opens the database and determines whether to send the new documents to the
BlackBerry device. If the documents are eligible for delivery to the BlackBerry device, the BlackBerry Messaging
Agent retrieves the text content of each document. It sends the first 2 KB of the message to the BlackBerry
Dispatcher to be compressed and encrypted, and queues one packet for delivery to the BlackBerry device.
The BlackBerry Enterprise Server runs as an add-in task on the IBM Lotus Domino server, which enables it to
operate securely in the IBM Lotus Domino environment.
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