[c-nsp] c7206VXR(NPE-G1) w/ 12.2(18)S8 - Memory failures

Gert Doering gert at greenie.muc.de
Thu Mar 31 07:39:11 EST 2005


Hi,

On Thu, Mar 31, 2005 at 03:27:11AM -0800, Ted Mittelstaedt wrote:
> But the NPE400 isn't very old, there's a lot of VXR's out there with
> 225's in them.  Going from 128 to 256 hurt a lot more as that took most
> 7206 non-VXR's out of the running, although I think you can still do a
> full table with IOS 11.1  (it's been too long for me to know)

We're currently more than tempted to filter out all the "we're just too
lazy" garbage out of what we accept - like "nearly 4000 /23 and /24 in
216/8", and none of them are of any real relevance for us, sitting on
a different continent.

Rough estimation ("do not accept /23 and /24s from /8s that are on
other continents") show a reduction from about 155.000 prefixes down to
about 110.000.

Guess how much money that'll save...

(Yes, there are drawbacks.  BGP customers need to know, and agree, to
only receive a reduced table.  Connectivitiy issues might arise, but 
those can be caught by adding a static /8 for these netblocks towards 
our upstreams).

gert

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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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