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When a customer is put on a "Noise Profile" usually their DSL line is changed from FastPath to Interleaved.

Interleaving is an error correction protocol that is implemented for your line at the DSLAM. With Interleaving enabled, the DSLAM can correct errors in the data stream it receives before passing that data to your gateway router. It is usually implemented on noisy or marginal lines and can greatly increase sync stability and effectively eliminate "first hop" packet loss. The largest drawback to Interleaving is that it will increase your ping time, specifically to your first hop gateway router.

If Interleaving is not enabled on your line, it is configured as FastPath. FastPath allows the DSLAM to pass the data received from you to the first hop router without performing any error correction. As a result, marginal lines could experience an increase in packet loss and decrease in sync stability (i.e. frequent sync loss). However, FastPath has lower ping times, especially to the first hop router.

The BellSouth DSG (Digital Services Group) is responsible for manually adding or removing customers from a Noise Profile. Interleaving can also be provisioned automatically without human intervention when line quality drops below certain perimeters.

Friendly Advice/Time Saver: Even though you may (after a large amount of effort) be able to call the Helpdesk and get switched to Fastpath, there's usually a reason you are interleaved, so you may or may not be able to connect without it. Typically, the system will automatically switch back to interleaved after a short time anyway.

Check here to see if your line is Fastpath or Interleave.

Andy Houtz

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by leevis See Profile edited by FAQFixer See Profile
last modified: 2007-06-22 14:25:57