CEF, IPX and 4507

Unanswered Question
Jul 10th, 2008
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Available documentation including, I think, the BCMSN handbook states unequivocally that on the 4500 switches IP packets are CEF-switched but that IPX are process-switched. Why, then, is there an IPX switching cache (on my 4507's with Sup IV's), and in what way is it analogous to the CEF cache?

I am trying to debug a deep and complex problem involving IPX connectivity (I know, I know) and am finding the existing documentation either vague or contradictory.

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