Communication device, control method, and storage medium
US-2024107607-A1 · Mar 28, 2024 · US
Communication device, communication system, and communication fault detection method
US8937869B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8937869-B2 |
| Application number | US-201113270305-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 11, 2011 |
| Priority date | Nov 29, 2007 |
| Publication date | Jan 20, 2015 |
| Grant date | Jan 20, 2015 |
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Abstract
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The communication device has a frame transfer unit that executes frame transfer via the first communication link and the second communication link, a link confirmation frame sending unit, and a return link confirmation frame monitoring unit. The link confirmation frame sending unit causes the frame transfer processing unit to send a link confirmation frame for use in confirming a normal link status via the first communication link from the communication device to the counterpart communication device. The return link confirmation frame monitoring unit performs fault detection of the first and second communication links by monitoring a return link confirmation frame which is to be returned from the counterpart communication device to the communication device via the second communication link when the counterpart communication device receives the link confirmation frame via the first communication link.
First claim
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What is claimed is: 1. A communication device for detecting faults in at least either one of a first communication link and a second communication link having a physical line connecting a first port of the communication device and a second port of a counterpart communication device, the first communication link being used for frame transfer from the communication device to the counterpart communication device, the second communication link being used for frame transfer from the cou…
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Frequently asked questions
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- What does patent US8937869B2 cover?
- The communication device has a frame transfer unit that executes frame transfer via the first communication link and the second communication link, a link confirmation frame sending unit, and a return link confirmation frame monitoring unit. The link confirmation frame sending unit causes the frame transfer processing unit to send a link confirmation frame for use in confirming a normal link st…
- Who is the assignee on this patent?
- Akahane Shinichi, Kaganoi Teruo, Kohno Tomohiko, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification H04L1/22. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 20 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).