On Dec 21, 2008, at 1:09 PM, John G. Scudder wrote:
The BGP RIB-level activity implies nothing about the fast switching
cache-level activity and vice versa. If you want to understand the
operational characteristics of caching, you'd be looking in the wrong
place.
We have real-world operational experience that says otherwise.
To expand on this comment slightly, I don't mean to assert correlation
between BGP activity and cache activity [*]. What I do mean to say is
that experience with fast switching (and similar) is very relevant to
thinking about any other cache-based forwarding scheme, whether the
"engine" (to use your analogy) is BGP or some other map distribution
scheme.
--John
[*] Though I'll note in passing and only as a curiosity that non-
correlation, while intuitively obvious, has not actually been proven
AFAIK.
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