... | ... | @@ -24,9 +24,9 @@ described below (which is not thorough). |
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White Rabbit presentation for an [interim
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meeting](http://www.ieee802.org/1/meetings/#may12gen) of Audio/Video
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Bridging Task Group in York:
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[presentation](https://www.ohwr.org/project/white-rabbit/uploads/9a482a8f367033fbc648d1f3c68e1b7e/WR_IEEE-AVBgen2-York2012.v1.0.pdf),
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[presentation](https://ohwr.org/project/white-rabbit/uploads/9a482a8f367033fbc648d1f3c68e1b7e/WR_IEEE-AVBgen2-York2012.v1.0.pdf),
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[presentation with
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notes](https://www.ohwr.org/project/white-rabbit/uploads/ac539e377013a7a5fb119f594766bfbd/WR_IEEE-AVBgen2-York2012-withNotes.v1.0.pdf).
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notes](https://ohwr.org/project/white-rabbit/uploads/ac539e377013a7a5fb119f594766bfbd/WR_IEEE-AVBgen2-York2012-withNotes.v1.0.pdf).
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Report by Rodney Cummings from the presentation
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can be found [here](IEEE8021YorkMeetingWRpresentationReport).
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... | ... | @@ -307,9 +307,9 @@ The enhancements to current IEEE 802.1AS include |
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- Ultra-low latency for critical traffic
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- CERN
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- maximum latency: below 1000us over ~5 bridge hops @ 1Gbps
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([page 10](https://www.ohwr.org/project/white-rabbit/uploads/1244844e3c3cf850fad84e575f3b3f61/wrCernControlAndTiming.v1.1.pdf))
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([page 10](https://ohwr.org/project/white-rabbit/uploads/1244844e3c3cf850fad84e575f3b3f61/wrCernControlAndTiming.v1.1.pdf))
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- guaranteed latency over tree-like (meshed) topology
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([page 19](https://www.ohwr.org/project/white-rabbit/uploads/1244844e3c3cf850fad84e575f3b3f61/wrCernControlAndTiming.v1.1.pdf))
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([page 19](https://ohwr.org/project/white-rabbit/uploads/1244844e3c3cf850fad84e575f3b3f61/wrCernControlAndTiming.v1.1.pdf))
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- main network characteristics: ~2000 end stations, links of
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max 10km, max network span: 10km
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- traffic characteristics: "control data" size (payload):
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... | ... | @@ -319,7 +319,7 @@ The enhancements to current IEEE 802.1AS include |
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encoded into 4 or 6 frames of size 300-1500 bytes and sent
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in burst), ~8 "control streams" (defined within separate
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VLANs, see
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[page 7](https://www.ohwr.org/project/white-rabbit/uploads/1244844e3c3cf850fad84e575f3b3f61/wrCernControlAndTiming.v1.1.pdf))
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[page 7](https://ohwr.org/project/white-rabbit/uploads/1244844e3c3cf850fad84e575f3b3f61/wrCernControlAndTiming.v1.1.pdf))
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sent every 1000us, critical stream is one-to-many, "normal
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data" size (payload): ~1500 bytes
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- GSI (not necessarily up-to-date)
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... | ... | |