HSRP availability in datacenters?

Mike Lyon mike.lyon at gmail.com
Fri May 11 19:24:03 UTC 2007


Well, the suits will realize the support nightmare (which equals $$$)
if they don't keep HSRP. Hopefully, they won't have to learn that the
hard way.

-Mike




On 5/11/07, Randal Kohutek <nanog at data102.com> wrote:
> I had read that on our original deployment, and it's a nightmare to keep the
> documenation and configuration in synch. My personal opinion is that
> potentially failing 16 VSIs over to the standby at once (because they're all
> in the same group) - instead of just the affected ones - is poor policy.
>
> I agree, 6500s or 4500s for distribution are where it's at ... Unfortunately
> they cost a lot. Which is why the suits are considering financing them by
> charging for the features they provide.
>
> This has been a hot topic around the office, with all of us network guys
> saying `keep hsrp everywhere` because it makes our phones ring less, but we
> realize that network upgrades aren't free, which is making the non-IT folks
> all antsy.
>
> Regards,
> Randal
>
> > -----Original Message-----
> > From: Mike Lyon [mailto:mike.lyon at gmail.com]
> > Sent: Friday, May 11, 2007 1:11 PM
> > To: Randal Kohutek
> > Cc: nanog at merit.edu
> > Subject: Re: HSRP availability in datacenters?
> >
> > Check out this article:
> >
> > http://www.cisco.com/en/US/products/hw/switches/ps646/products
> > _qanda_item09186a00801cb707.shtml#q1
> >
> > Get rid of the 3550. Get youself a 6509 or 6513 :0
> >
> > -Mike
> >
> >
> > On 5/11/07, Randal Kohutek <nanog at data102.com> wrote:
> > > We currently offer HSRP everywhere, the problem is that it doesn't
> > > scale on a budget. For example, a 3550 can do 16 HSRP
> > groups, limiting
> > > the number of customers that we can attach to (2x 3550s) to
> > 16. That's
> > > a lot of distribution infrastructure for 16 customers. Then
> > to scale
> > > that, say, to
> > > 200+ customers, that means we have 12-13 pairs of distribution
> > > 200+ routers, each
> > > with 2x gigE uplinks to the core ... Which means that
> > either (A) the
> > > core has to be really big or (b) we get fewer, more powerful
> > > distribution devices.
> > >
> > > This is where my employer is at now - I admit, we're tiny in the
> > > datacenter world - but the cost to aggregate 100+ HSRP
> > groups into the
> > > core, with room to grow, is pretty staggering for a smb.
> > >
> > > This why the suits are wondering if there is a revenue opportunity
> > > hiding somewhere to finance such a thing. Ah, the joys of
> > growing out
> > > of your britches :)
> > >
> > > Thanks for any continued response,
> > > Randal
> > >
> > >
> > >
> > > > -----Original Message-----
> > > > From: owner-nanog at merit.edu
> > [mailto:owner-nanog at merit.edu] On Behalf
> > > > Of Mike Lyon
> > > > Sent: Friday, May 11, 2007 12:40 PM
> > > > To: Randal Kohutek
> > > > Cc: nanog at merit.edu
> > > > Subject: Re: HSRP availability in datacenters?
> > > >
> > > >
> > > > So is the question: you are selling transit to your customers and
> > > > you are wondering if you should charge your customer for allowing
> > > > them to use your HSRP gateway instead of a physical interface on
> > > > your router?
> > > >
> > > > Personally, if I saw a provider charging for that
> > service, I would
> > > > shy away from them. Only because it tells me they are
> > piece-mealing
> > > > their services and are cheap. I would think a good provider would
> > > > include that (and/or not sell it WITHOUT
> > > > HSRP) in their sales offering. If for the only reason of customer
> > > > support nightmares. If you have your customers on HSRP
> > and you have
> > > > a router go down, you wont have them calling you every
> > five minutes
> > > > bitching at you...
> > > >
> > > > -Mike
> > > >
> > > >
> > > > On 5/11/07, Randal Kohutek <nanog at data102.com> wrote:
> > > > >
> > > > > My cohorts in suits have begun wondering if HSRP is
> > standard for
> > > > > customer gateways, and from there wondering if it is
> > > > something we should charge for.
> > > > > I did some research and came up with mixed results; I'd
> > > > like to hear
> > > > > nanogers experiences with this:
> > > > >
> > > > > In your experience, do datacenters provide free HSRP
> > > > gateways, or do
> > > > > they make you pay for it?
> > > > >
> > > > >
> > > > > Real world examples are better than Google :) Thanks, Randal
> > > > >
> > > > >
> > > >
> > >
> > >
> >
>
>



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