tcpdump mailing list archives

Re: advice for heavy traffic capturing


From: Darren Reed <darrenr () reed wattle id au>
Date: Wed, 11 Aug 2004 00:08:36 +1000 (EST)

In some email I received from Loris Degioanni, sie wrote:
Other things:
- modern network cards don't almost do buffering. The memory inside the
board is usually few KB, and its purpose is providing the space for a packet
or two. The actual buffering is done in the RAM of the PC. What determines
the card performance is PHY efficiency and PCI bandwidth usage.

Ok, so what do you have to say about NICs that have 128k buffers vs the
small buffers on other cards?

Darren
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