From: Nate Cielieska (ncielieska@gmail.com)
Date: Thu Jul 17 2008 - 00:00:08 ART
John,
Typical i have seen this done in the following way:
- Servers have two physical NIC's. These NIC's each have a connection to
primary/secondary 6500
- The servers should have a fault tolerant piece of software that allows
them to "team". Teaming involves spoofing a virtual mac or keeping track of
2 Mac addresses and on failure making a card active, the first option being
more predominant
- HSRP natively on the 6500 handles this swimmingly. Make a standby group
and configure HSRP on an SVI relating to those servers. If a switch dies,
the secondary switch SVI takes precedence, and the teamed NIC fails as well
giving you your second redundant path.
In reality if you just wanted to cover switch failure, you could do it with
HSRP on SVI's but your server would be vulnerable to failure at that point.
On Wed, Jul 16, 2008 at 5:29 PM, john white <johnwhite2008@gmail.com> wrote:
> Thanks gents for your inputs,
>
> The problem is that the client does not want to loadbalance between the two
> servers. Instead he would like one to be active while the other is passive
> ready to kick in in case of failure of the primary.
>
> Is there a way out in this case?
>
>
> On Wed, Jul 16, 2008 at 4:50 PM, Rich Collins <nilsi2002@gmail.com> wrote:
>
> > Shouldn't HSRP be able to handle most of your requirements?
> >
> > On Wed, Jul 16, 2008 at 11:41 AM, john white <johnwhite2008@gmail.com>
> > wrote:
> >
> >> Hi Gents,
> >>
> >> I have a situation here and would like your assistance. I am preparing
> for
> >> my ccie lab and this problem is killing me.
> >>
> >>
> >> I have two Cisco 6506 switches which i would like to configure for high
> >> availability (preferably both active at the same time). I also would
> like
> >> to
> >> run OSPF between the two switches
> >>
> >> I have servers that will be connecting to these switches. These servers
> >> are
> >> in pairs ( i.e two servers both providing the same service to the same
> >> clients and with same IP address)
> >>
> >> I plan to connect each server in a pairing to a different 6506 switch to
> >> so
> >> that in case of failure of one switch or one server, users can still
> >> access
> >> this service via the second server.
> >>
> >> The problem is ,
> >>
> >> If a server fails , how do the switches route / switch to the second
> >> server
> >> ( in the pairing)
> >> How do i connect these servers to the network bearing in mind they will
> be
> >> accessed with the same IP Address
> >>
> >> Please advice
> >>
> >>
> >> _______________________________________________________________________
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>
>
> _______________________________________________________________________
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