From: James Ventre (messageboard@ventrefamily.com)
Date: Mon Feb 13 2006 - 12:37:32 GMT-3
I'm going to make a few assumptions:
You're not using a Sup720 becuase DRM isn't an option for that platform.
Since you're not on a Sup720 you're likely in 12.1E and not 12.2
12.2(18)SXF is the first 12.2 code to support the older supervosors
12.2(18)SXF introduces SSO for hybrid but is pretty *new* (ie.
buggy) code.
That being the case SRM is often much easier to configure/maintain since
you're only touching one device when you make edits like adding static
routes and maintaining config templates. But, SRM failover in 12.1E
compared to 12.2 wasn't all that fast (like comparing RPR to RPR+), so
you could see faster failover times with DRM and HSRP). Realistically,
DRM is getting pushed to the curb first (not supported on a Sup720 at
all), SRM is not all that far behind though, because 12.2(18)SXF
supports SSO in hybrid mode (no more SRM).
Realistically, SSO is the future, and you'll be there eventually. I can
see a good argument for going with the config that puts you closer to
that so there are less changes in the future. SRM to SSO is only a
line or two in the config. But I can see the argment for going with
the fastest failover times since it's faster!
I'd need to know more requirements before I picked one over the other.
James
Tim wrote:
> Hi Guys,
>
>
> I just learned about a 6500 feature called Single Router Mode (SRM). With
> this feature enabled on a 6500 with dual MSFC's, if one MSFC goes down the
> other takes over.
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