[c-nsp] WS-6500-SFM insertion into production box, much of an impact?

Gert Doering gert at greenie.muc.de
Mon Feb 9 02:50:21 EST 2009


Hi,

On Mon, Feb 09, 2009 at 10:26:42AM +1030, Ben Steele wrote:
> I'm looking for some info on the insertion of a SFM into a live 6500(Sup2
> obviously), can't seem to find any info on Cisco as to the consequences this
> may have to traffic flowing through the Bus at the time(ie dropped packet
> rates), and I want to know if the modules go from using Bus only backplane
> to crossbar as soon as the module initiates or whether a reload would
> actually be required for this.

I've never done this, so I can speak from personal experience.

Judging from the overwall way the box decides how to do switching
("if there is a 3A DFC in the system, all 3B PFCs fall back to 3A mode,
and you need a reload to get it back to 3B"), my guess would be "you
can insert it just fine, but it won't be used for switching unless you
reload".  So I'd schedule a maintenance window with downtime.

I'm looking forward to hear about your experiences, though :-)

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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