You are required to read and agree to the below before accessing a full-text version of an article in the IDE article repository.
The full-text document you are about to access is subject to national and international copyright laws. In most cases (but not necessarily all) the consequence is that personal use is allowed given that the copyright owner is duly acknowledged and respected. All other use (typically) require an explicit permission (often in writing) by the copyright owner.
For the reports in this repository we specifically note that
- the use of articles under IEEE copyright is governed by the IEEE copyright policy (available at http://www.ieee.org/web/publications/rights/copyrightpolicy.html)
- the use of articles under ACM copyright is governed by the ACM copyright policy (available at http://www.acm.org/pubs/copyright_policy/)
- technical reports and other articles issued by MÃ¤lardalen University is free for personal use. For other use, the explicit consent of the authors is required
- in other cases, please contact the copyright owner for detailed information
By accepting I agree to acknowledge and respect the rights of the copyright owner of the document I am about to access.
If you are in doubt, feel free to contact firstname.lastname@example.org
Real-Time Ethernet: Challenges and Prospects
Prof. Eduardo Tovar, PolyTech Inst. of Porto
Ethernet is the most popular LAN technology. Its low price and robustness,
resulting from its wide acceptance and deployment, has created an eagerness
to expand its responsibilities to the factory-floor, where real-time
requirements are to be fulfilled. However, it is difficult to build a
real-time control network using Ethernet, because its MAC protocol, the
1-persistent CSMA/CD protocol with the BEB collision resolution algorithm,
has unpredictable delay characteristics.Many anticipate that the recent technological advances in Ethernet such as
the emerging Fast/Gigabit Ethernet, prioritization, micro-segmentation and
full-duplex operation using switches will also enable it to support
time-critical applications.This talk will look at the unpredictability inherent to Ethernet and at
recent technological advances towards real-time operation. It will also
address recently introduced features such as spanning tree protocols, port
trunking and virtual LANs which may potentially enable flexibility and
mobility in distributed time-critical systems.