TalkTalk Wholesale Line Profiles: Difference between revisions
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==Interleaving, Error Correction and Delay== |
==Interleaving, Error Correction and Delay== |
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Packets of data that are transferred across a DSL line are split |
Packets of data that are transferred across a DSL line are split into smaller blocks of data; these are then sent sequentially sent across the DSL line. As they arrive at the receiving end, they are recombined into the original larger packets of data. |
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If one block of a larger packet is lost due to line interference, the packet can be recreated using the remaining blocks that were received; data blocks reserve some space for data which can salvage a partially damaged block. This is known as |
If one block of a larger packet is lost due to line interference, the packet can be recreated using the remaining blocks that were received; data blocks reserve some space for data which can salvage a partially damaged block. This is known as ''error correction''. Interleaving can be used as a form more robust form of error correction. |
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The |
The ‘delay’ of the interleaving is simply a measurement of the size of the interleaving buffers. The size is measured in milliseconds (ms). |
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Milliseconds (ms). |
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The buffer sizes available on the TalkTalk network are: |
The buffer sizes available on the TalkTalk network are: |
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*Off ( |
*Off (fast) |
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*8ms |
*8ms |
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*16ms |
*16ms |
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