[c-nsp] SNMP question

Gert Doering gert at greenie.muc.de
Tue Apr 10 05:17:56 EDT 2007


Hi,

On Tue, Apr 10, 2007 at 09:41:39AM +0100, Sam Stickland wrote:
>    Anything in s/w IOS (87x-->7200) should be pretty much real-time AFAIK."

That's definitely not correct for NPE-G1 / 12.2(18)S9...

 - 32 bit counters on gi0/1: seem to be real-time
 - 64 bit counters on gi0/1: 5 seconds
 - 32 bit counters on pos2/0: seem to be real time
 - 64 bit counters on pos2/0: 20 seconds

I'm not sure I *want* to imagine what sort of programming is required to
get *that* result.

(If I had to do it, I would use 64 bit counters everywhere, and have SNMP
just return the lower half on 32 bit queries.  "show int" would return 
SNMP counters minus "clear count" offset.  Boom, no more inconsistencies 
between 32/64/snmp/sh int counter anymore.  But that would take away
half the fun...)

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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