Scheduled System Maintenance:
On Monday, April 27th, IEEE Xplore will undergo scheduled maintenance from 1:00 PM - 3:00 PM ET (17:00 - 19:00 UTC). No interruption in service is anticipated.
By Topic

Avoiding the babbling-idiot failure in a time-triggered communication system

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Temple, C. ; Inst. fur Tech. Inf., Tech. Univ. Wien, Austria

In a distributed hard real-time system based on a broadcast bus for inter-node communication, it is important to prevent a single faulty node from monopolizing the communication bus. In a time-triggered system, in which messages are broadcast according to a pre-determined transmission pattern, this kind of failure is characterized by the faulty node transmitting messages at arbitrary points in time, thus corrupting the transmissions on the bus. This type of failure is known as the babbling-idiot failure. Within the presented approach, a special device, the bus guardian, is added to each node to protect the communication bus from the babbling-idiot failure. The regular transmission pattern of a time-triggered system is exploited in order to enforce a fail-silent behaviour of the node in the time domain. The paper describes the requirements imposed on the bus guardian to enforce fail-silent behaviour of the node. The mechanisms of the bus guardian are presented, along with the node architecture necessary for implementing the presented technique.

Published in:

Fault-Tolerant Computing, 1998. Digest of Papers. Twenty-Eighth Annual International Symposium on

Date of Conference:

23-25 June 1998