Hi John, thanks for the reply.
Yes Howard is very correct, and a little more info here is required.
Here is the deal...
1) My company is in the startup phases of a datacenter that will have a
varitity of services, ISP, ASP, Outsourcing, distributed servers, etc. Think
of exodus on a local scale.
2) We are waiting on USWest to deliver a OC3 with SST SHARPS which will be
upgraded to a full SONET ring further down the road. Until then we are still
on a type 2 network, i.e. copper. We are able to live with the copper until
the self healing redundant fiber is hot.
3) We have cold stand by routers/switches to roll for the HSRP deployment.
We maintain a 24x7x4 SmartNet contract on all mission critcal equipment.
4) We will have in place for many of our customers a SLA that has a 99.999%
uptime. This works out to about 1 minute of down time per month. There are
some things that we just can not control, i.e. local loops and the like. But
we must make every effort to prevent downtime in our walls. With the 5 nines
SLA there is no room for a 4 hour wait for a new router from Cisco, or for a
tech to run across the floor and move the serial lines. It has to be
automatic and fast in both detection of a failure and failover to a working
platform.
Once the fiber goes hot the FR is not a problem, as we will be our own frame
switch with redundant point to point DS1 lines that come under the SST
SHARPS/SONET redunancy.
So with the above you can see the problem, the 5 nines SLA. We can not
afford long down times. The best USWest can come up with is the call the
computer to move the PVCs to a new line, which is no better than a tech
running to move serial lines. This may end up as one those beyond our
control items, but surely someone else has had to deal with this problem
before, and maybe there is a solution.
TIA
--
John Hardman, MCSE+I, CCNA
ArrisTech/CCS-IS SysAdmin
"John Neiberger" <[EMAIL PROTECTED]> wrote in message
12546882.963278742466.JavaMail.imail@tiptoe">news:12546882.963278742466.JavaMail.imail@tiptoe...
> If you're worried about your 4500 dying, then either buy another to have
> there waiting, or get a 24/7 service contract that would get a replacement
> to you quickly if needed. If you're worried about the circuits to your
> building going down all at once, then you simply need to get separate
> redundant links to your provider.
>
> If you're worried about the provider, then things get a little stickier.
To
> again quote Howard the Great, "What is the problem you are trying to
solve?"
> It's such a great quote, why not use it? And it applies. Redundancy is
> fine, but what exactly is it that you're worried about? To gain complete
> and full redundancy would be an expensive venture at best, and a nightmare
> at worst. How much is it worth to your company?
>
> If your system goes down for a short period, are you losing a lot of
money?
> Are you in e-commerce? Can you handle being down for a few hours? If so,
> then get the service contract. If you absolutely cannot handle being down
> for more than a very brief period, then make sure the higher-ups
understand
> that this type of redundancy *might* get very expensive very quickly.
>
> Then again, it all depends. :-)
>
> > Hi
> >
> > It is not so much the out lying sites I am worried about, I have a dial
> > backup (ISDN BRI to PRI) now. There are only a couple of sites that
fall
> > under the HSRP mandate.
> >
> > But I have a single 4500 doing the host part (i.e. the hub in a hub and
> > spoke design) of the FR network. So what I need to do is have the 4500
> > backed by another 4500 running HSRP and have all interface serial and
> > ethernet failover.
> >
> > Thanks for the reply!
> > --
> > John Hardman, MCSE+I, CCNA
> >
> > ""Odell, Jeff"" <[EMAIL PROTECTED]> wrote in message
> > CD9DBAE1E066D311A8AE00805FA7F57C01768629@NTMAIL03">news:CD9DBAE1E066D311A8AE00805FA7F57C01768629@NTMAIL03...
> > > John,
> > >
> > > Depending on your bandwidth needs you might want to consider ISDN.
My
> > > company uses BRI ISDN to back up each frame relay connection.
Fairly
> > > inexpensive and with a few lines in your router config, can
> automatically
> > > come up when the frame relay goes down. I would recommend a 800
series
> > > router for relatively low traffic sites (I use them for small offices
> of
> > up
> > > to 30 people) to back up a 2600 running the frame connection.
> > >
> > > All in all, it is a relatively cheap and functional solution.
> > >
> > > If you share some more info like your bandwidth requirements, etc. I
am
> > sure
> > > others will chime in with other recommendations.
> > >
> > > Jeff Odell
> > > CCNA CCDA
> > >
> > > -----Original Message-----
> > > From: John Hardman [mailto:[EMAIL PROTECTED]]
> > > Sent: Monday, July 10, 2000 4:27 PM
> > > To: [EMAIL PROTECTED]
> > > Subject: High availability design with FR, how?
> > >
> > >
> > > Hi All...
> > >
> > > I have a mandate from on high that all of our routers now have HSRP
> > support.
> > > Not a problem on the LAN side, and I have worked out the point to
point
> > line
> > > issues by using channelized lines and creating two serial lines. But
> the
> > > frame relay (FR) is killing me!
> > >
> > > So far the only solution seems to be with the telco providing a
second
> FR
> > > host line that in the event of failure we call a computer at their
end
> and
> > > dial a few numbers and the PVCs are moved to the secondary FR host
> line.
> > > Needless to say doesn't sound too hot to me, as it requires that
> > everything
> > > work just right to get a reasonable failover, and this may not be in
a
> > > timely manner.
> > >
> > > Anyone have any thoughts?
> > > --
> > > John Hardman, MCSE+I, CCNA
> > >
> > >
> > >
> > > ___________________________________
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