Maintenance Manual

Chapter 7 Support Facilities
Error Reporting
7-2
Cisco ICM Enterprise Edition Administrator Guide Release 6.0(0)
Figure 7-1 DDSN Overview
The DDSN Transfer Process (DTP) keeps EMS events in memory until delivering
them to the Listener. To minimize the traffic to the Listener (and particularly the
number of dial-up connections that may needed over time), messages are batched
and sent periodically. However, if the DTP receives a high priority event, it
immediately sends the event to the Listener. If an attempt to establish a RAS
connection fails because of a busy phone or no answer, the DTP process
periodically tries to re-establish the RAS connection.
You can place exported log files (for example, .txt files) in the export directory on
the local machine.
Every 30 minutes, the DTP checks to see if there are EMS events in memory or
any new files in the Logger’s export directory. When there are new events and
files, the DTP sends the events and files to the Listener, establishing a RAS
connection, if necessary. Any files sent to the Listener are then deleted from the
Logger’s export directory.
Error Reporting
The ICM Logger immediately informs the Listener of any significant errors or
unexpected conditions it encounters. Error reporting is handled by two processes
on the Logger:
• Customer Support Forwarding Service (CSFS). Receives events, filters
them, and holds then in memory.
DDSN Transfer
Process (DTP)
Customer Support
Forwarding Service
(CSFS)
Logger
ICM Central Controller
Call
Router
Real-Time
Event Feed
EMS Event Data
Local and Remote
PGs and NICs
Support
Listener
Remote Access
Service (RAS)
Dialup or Direct
Network Connection
Admin Workstation
Send Home
Messages
Serial Feed
SNMP Feed
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