what is the difference between private buffer and public buffer?

Unanswered Question
Mar 30th, 2009

Hi all,

I wonder the difference between private buffer and public buffer.

is there anyone explain the difference??

when is the public buffer used?

when is the private buffer used?

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Joseph W. Doherty Mon, 03/30/2009 - 04:29

From Cisco (http://www.cisco.com/en/US/products/hw/routers/ps133/products_tech_note09186a00800a7b80.shtml):

"The interface buffer pools are used by the interfaces for input/output (I/O). When there are no more buffers in the interface buffer free list, the router goes to the public buffer pools as a fallback. There is no performance hit for a fallback. "

"The public buffer pools are located in DRAM, and are called system buffers."

"Private particle pools are used by the interfaces . . ."

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