[c-nsp] Portchannel DCEF across different VIPS in 75xx

Rodney Dunn rodunn at cisco.com
Thu Jan 20 11:55:39 EST 2005


On Thu, Jan 20, 2005 at 11:02:32AM -0500, Joe Maimon wrote:
> 
> 
> Rodney Dunn wrote:
> 
> >One benefit I see is that your downtime for
> >the full PC would be less if you spread the
> >member links over VIPs in the event you have
> >a VIP crash and have SLCR enabled (single line-card
> >reload).  You will still see a very short drop
> >of traffic in the chassis while MEMD is recarved
> >but it's a lot lot less than having to do a CBUS
> >complex restart and reload the code to all the cards.
> >
> >For those of you that don't have SLCR enabled please
> >enable it. /*plug*/
> >
> >  
> >
> Excellent point.
> 
> Why isnt SLCR enabled by default if the image supports it and the VIPS 
> support it?

because when it was first put in someone wanted a switch to
be able to disable it and therefore it's a new CLI addition
and it was put in originally as off by default.

Once that path is started it's almost impossible to reverse
without someone complaining.

IMO it should have been an internal change without a CLI
to toggle and it been done everywhere.

If I can find the time I'll check and see if it is on
by default anywhere and maybe start the process to do it.

Rodney


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