DUAL-RING SWITCH FOR RSTP NETWORKS
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Jul 3, 2014
app pub date -
Mar 30, 2012
filing date -
Jun 30, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A dual-ring computer network architecture for industrial automation systems includes a dual-ring switch for interconnecting two networks, such as Rapid Spanning Tree Protocol (RSTP) networks. The dual-ring switch may provide separate control planes between the two networks but a common data plane between the networks. The system topology may include a main ring and a sub-ring, which creates separate fault regions for isolation. Using this configuration, the standard RSTP practical limit of 32 devices is no longer a limit, as the use of the dual-ring switch provides a mechanism to expand the total number of devices up to 256 while maintaining the network recovery time to within a target of 50 milliseconds. This allows for the use of dual rings using the RSTP protocol on a single switch. In another embodiment, two dual-ring switches are configured in the same sub-ring for redundancy.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully