At Networkers, they said only the primary Sup/MSFC could program the
ASICs for full speed forwarding.  The backup/secondary had to do
everything in software.  It's a really big performance hit.  I don't
think they made a distinction between native and hybrid.

>>> "Michael L. Williams"  08/19/02 07:22PM
>>>
When you have two Sups and you're running Native IOS, you cannot run
HSRP
between them...as you mentioned, one sup is active and the other is
standby
and there's about 90-120 seconds of downtime when one sup fails because
the
other sup has to re-initialize the hardware (the standby sup (if you
watch
from a console while it boots) actually boots part way.... it loads IOS
but
then waits... when the other sup fails, it "finishes" the boot process
by
initializing the blades and then running as normal)

We have 2 6509s, and we run HSRP between the sups on them so that if
there
is a sup failure, only the devices attached to the switch with the
failed
sup are affected..... the others work fine because HSRP will keep at
least
one MSFC up and running.

If you use the following commands in global config mode, it will setup
so
that when you make config changes on the primary sup and save them,
that it
will automatically update the config on the backup sup too.....

redundancy
 main-cpu
  auto-sync standard
[snip]




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