[c-nsp] Sup720 vs RSP720 - Difference?

[Gert Doering]

Hi,

On Fri, Jun 19, 2009 at 10:55:11AM -0700, Rick Ernst wrote:
> So, the Sup720/RSP720 uses DRAM to store RIB + other stuff, and the FIB is
> in TCAM either on the Sup (if no DFC), or on the DFC?

Correct.

> It looks like the extra memory on the RSP720 vs Sup720 would be good for
> multiple feeds, but the TCAM (potentially divided between IPv4 and IPv6)
> is limited to 1 million entries (2 entries per IPv6) regardless of
> platform?

Correct.  (256k entries if non-XL TCAM is used).

> IIRC TCAM is also used for ACLs and, as somebody else mentioned, also for
> Netflow?  Is there a different set of TCAM between FIB, ACLs, and NetFlow,
> or does everything combined have to fit into the same 1M entries?

ACL and Netflow stuff goes "somewhere else" in the TCAM.  The 1M entries
are "just FIB" (IPv4, IPv6, MPLS, multicast).

gert
-- 
USENET is *not* the non-clickable part of WWW!
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Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de
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