Industrial Ethernet: Switches help flexibility, security

Designing and deploying a robust and secure network infrastructure requires protecting the integrity, availability, and confidentiality of control and information data. Smaller LANs can help manage different types of network traffic. Creating domains of trust limits access to authorized personnel. These practices require a new segmentation methodology.

09/22/2010


Designing and deploying a robust and secure network infrastructure requires protecting the integrity, availability, and confidentiality of control and information data. Establishing smaller LANs helps manage different types of network traffic and creates domains of trust to limit access to authorized personnel. These practices require a new segmentation methodology.

Users traditionally segmented networks by location, but they can now segment by function. That’s because VLANs (virtual local area networks) provide traffic segmentation like separate networks did, enabling users to logically segment areas of control to increase performance and minimize network latency and jitter.

A Layer 3 switch can route traffic between and across VLANs based on IP addresses. This enables a more flexible segmentation model that directs traffic only to where it is needed. A number of routing protocols have been developed that allow Layer 3 switches and routers to reliably route packets to their destination based on IP address.

These routing protocols allow various devices to communicate and maintain viable routes between each other so that packets can always be forwarded if a viable path exists even as connections or devices fail.

Choice of routing protocol, and the configuration and maintenance of the Layer 3 switches and routers typically raise a point of contention between manufacturing and IT personnel.

www.ab.com/networks


- Gregory Wilcox, Mike Hannah, and Mark Devonshire are with Rockwell Automation;

- Edited by Mark T. Hoske, Control Engineering, CFE Media, www.controleng.com, www.cfemedia.com


- Also read:


Post a comment

No comments
The Top Plant program honors outstanding manufacturing facilities in North America. View the 2015 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
Strategic outsourcing delivers efficiency; Sleeve bearing clearance; Causes of water hammer; Improve air quality; Maintenance safety; GAMS preview
World-class maintenance: The three keys to success - Deploy people, process and technology; 2016 Lubrication Guide; Why hydraulic systems get hot
Your leaks start here: Take a disciplined approach with your hydraulic system; U.S. presence at Hannover Messe a rousing success
Flexible offshore fire protection; Big Data's impact on operations; Bridging the skills gap; Identifying security risks
The digital oilfield: Utilizing Big Data can yield big savings; Virtualization a real solution; Tracking SIS performance
Getting to the bottom of subsea repairs: Older pipelines need more attention, and operators need a repair strategy; OTC preview; Offshore production difficult - and crucial
Applying network redundancy; Overcoming loop tuning challenges; PID control and networks
Putting COPS into context; Designing medium-voltage electrical systems; Planning and designing resilient, efficient data centers; The nine steps of designing generator fuel systems
Package boilers; Natural gas infrared heating; Thermal treasure; Standby generation; Natural gas supports green efforts

Annual Salary Survey

Before the calendar turned, 2016 already had the makings of a pivotal year for manufacturing, and for the world.

There were the big events for the year, including the United States as Partner Country at Hannover Messe in April and the 2016 International Manufacturing Technology Show in Chicago in September. There's also the matter of the U.S. presidential elections in November, which promise to shape policy in manufacturing for years to come.

But the year started with global economic turmoil, as a slowdown in Chinese manufacturing triggered a worldwide stock hiccup that sent values plummeting. The continued plunge in world oil prices has resulted in a slowdown in exploration and, by extension, the manufacture of exploration equipment.

Read more: 2015 Salary Survey

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.
This article collection contains several articles on the vital role that compressed air plays in manufacturing plants.
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.
This article collection contains several articles on strategic maintenance and understanding all the parts of your plant.
click me