[c-nsp] Broken SNMP ifHCInUcastPkts on NPE-G1 GE 12.4(5)

Gert Doering gert at greenie.muc.de
Fri Nov 4 01:56:19 EST 2005


Hi,

On Fri, Nov 04, 2005 at 02:14:35AM +0000, Bernhard Schmidt wrote:
> just a heads up, the ifHCInUcastPkts SNMP counters on the (builtin) Gigabit
> ports of a NPE-G1 are horribly broken in 12.4(5):
> 
> IF-MIB::ifHCInUcastPkts.1 = Counter64: 18446741221889117816
> [a minute later]
> IF-MIB::ifHCInUcastPkts.1 = Counter64: 18446741209004421353

That's just to show how fast this NPE-G1 really is!!  It makes a 64 bit
counter wrap around in 60 seconds!

Is this reproduceable?  If yes, I think it's certainly worth opening
a case (via your support chain), because that's about the worst thing
that can happen to an ISP, obviously-broken SNMP counters.

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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