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

[Ben Steele]

Thanks for all the replies, personally i'm thinking it will be a few second
hiccup like you often get with OIR then on its way again but the fact i'm
changing how the underlying switch fabric works with this makes it more
interesting... i've scheduled an outage for this Sunday evening so I will
let you all know how it goes.
Cheers

Ben

On Mon, Feb 9, 2009 at 7:37 PM, Peter Rathlev <peter at rathlev.dk> wrote:

> On Mon, 2009-02-09 at 10:26 +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),
>
> Just to chime in with more non-certain knowlegde: When doing OIR the box
> does a "bus stall" AFAIK. This happens between when the pins start
> connecting and when all pins are connected.
>
> If this were to not cause any lost packets, the modules would have to
> buffer while the bus stall is in effect and retransmit whatever was on
> the wire when it happened. I don't think they do.
>
> Regards,
> Peter
>
>