Detecting legacy bridges in an audio video bridging network
US8977737B2 · kind B2 · utility
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14References
25Claims
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Key dates
| Filing date | Dec 24, 2007 |
| Grant date | Mar 10, 2015 |
| Priority date | — |
| Expiry date | Feb 5, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L41/34
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a network having one or more Audio Video Bridging (AVB) devices, non-AVB bridges are detected by transmitting a maintenance message, such as a unicast linktrace message, from one AVB device such as a residential gateway to another AVB device such as a set-top box or IPTV. AVB devices in the path provide replies indicating whether the port on which the linktrace message was received is connected to a non-AVB bridge. The disclosure has utility in diagnostics problems with IPTV in a network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.