Re: Scramble or not to scramble

From: George Robbins (grr@shandakor.tharsis.com)
Date: Tue Jul 18 2000 - 00:06:31 EDT


Well, the b3zs linecoding should keep you out of erroneous error territory.

There are some older t3 CSU's that don't even support payload scrambling,
beyond that it seems some providers default to doing it one way and some
the other...

The DOS thing has to do with scrambler prediction on services over SONET
links that don't use a zero-handling linecoding at the line level. (or
something like that 8-)

                                                George

> Date: Mon, 17 Jul 2000 16:37:38 -0700
> To: <cisco-nsp@puck.nether.net>
> From: Ramin K <kashani@enteract.com>
> Subject: Scramble or not to scramble
>
> I've got a provider who said they usually don't do scramble on DS3's.
> I was under the impression that turning on scramble was a good thing
> in most cases.
>
> Now of course I can't remember why I came to this conclusion. The only
> reference I found was it keeps your DSU from reporting erroneous errors.
>
> For some reason I thought it made some DoS attack against the interfaces
> harder. Am I just on crack?
>



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