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Posted by GNY on July 14, 2007, 9:52 am
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Hello,
Does anyone know if this setup is possible and if so, which router or
device can do this.
Virtual floating IP.
Site A: Server 1
Site B: Server 2
1 IP pointing to A site.
Scenario: If site A's server doesnt answer send the traffic to site B
and the router there will forward it to the site B server.
There is a VPN tunnel connecting sites A & B.
The server on site A and B are exactly the same. So if for some reason
site A server fails the router should send the traffic then to site B.
Yes I know there are redundancy applications that can do this and
thats what they are for, but is this possible from a router
perspective?
Correct me if I'm wrong, but would the return traffic here be the
issue? COnsidering that traffic would come from a different IP all
together or is this where PAT comes in?
Hope i clearly explained what I'm trying to do here; any
recommendations are appreciated.
GNY
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Posted by James on July 15, 2007, 10:48 pm
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Hi,
In the Cisco world you would use a Content Services Switch (CSS 11000
series) or IOS Server Load Balancing (SLB) for this however both of
these solutions are expensive. CSS's start at around $11,000 and SLB
is only supported on the 3640 & 3660 (both end of life), highend
router platforms (7100, 7200, 7300, 7400 & 7600) and the 6000 / 6500
switches.
There are many other maufacturer's who offer similar devices and may
be a cheaper alternative such as Radware, Alteon (Nortel), F5 and
Foundry.
Jmes
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Posted by GNY on July 16, 2007, 6:40 am
If you were Registered and logged in, you could reply and use other advanced thread options > Hi,
>
> In the Cisco world you would use a Content Services Switch (CSS 11000
> series) or IOS Server Load Balancing (SLB) for this however both of
> these solutions are expensive. CSS's start at around $11,000 and SLB
> is only supported on the 3640 & 3660 (both end of life), highend
> router platforms (7100, 7200, 7300, 7400 & 7600) and the 6000 / 6500
> switches.
>
> There are many other maufacturer's who offer similar devices and may
> be a cheaper alternative such as Radware, Alteon (Nortel), F5 and
> Foundry.
>
> Jmes
James.. Thanks for the reply.. So such a setup is not possible out the
box with any device.
What about multi-homed BGP? There a possiblity with that?
Thanks!
GNY
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Posted by GNY on July 16, 2007, 8:01 am
If you were Registered and logged in, you could reply and use other advanced thread options >
> > Hi,
>
> > In the Cisco world you would use a Content Services Switch (CSS 11000
> > series) or IOS Server Load Balancing (SLB) for this however both of
> > these solutions are expensive. CSS's start at around $11,000 and SLB
> > is only supported on the 3640 & 3660 (both end of life), highend
> > router platforms (7100, 7200, 7300, 7400 & 7600) and the 6000 / 6500
> > switches.
>
> > There are many other maufacturer's who offer similar devices and may
> > be a cheaper alternative such as Radware, Alteon (Nortel), F5 and
> > Foundry.
>
> > Jmes
>
> James.. Thanks for the reply.. So such a setup is not possible out the
> box with any device.
>
> What about multi-homed BGP? There a possiblity with that?
>
> Thanks!
>
> GNY
Sorry I meant.. with any device except for those you mentioned.
What exactly would this setup be called?
GNY
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Posted by James on July 16, 2007, 10:53 pm
If you were Registered and logged in, you could reply and use other advanced thread options >
>
>
>
>
>
> > > Hi,
>
> > > In the Cisco world you would use a Content Services Switch (CSS 11000
> > > series) or IOS Server Load Balancing (SLB) for this however both of
> > > these solutions are expensive. CSS's start at around $11,000 and SLB
> > > is only supported on the 3640 & 3660 (both end of life), highend
> > > router platforms (7100, 7200, 7300, 7400 & 7600) and the 6000 / 6500
> > > switches.
>
> > > There are many other maufacturer's who offer similar devices and may
> > > be a cheaper alternative such as Radware, Alteon (Nortel), F5 and
> > > Foundry.
>
> > > Jmes
>
> > James.. Thanks for the reply.. So such a setup is not possible out the
> > box with any device.
>
> > What about multi-homed BGP? There a possiblity with that?
>
> > Thanks!
>
> > GNY
>
> Sorry I meant.. with any device except for those you mentioned.
>
> What exactly would this setup be called?
>
> GNY- Hide quoted text -
>
> - Show quoted text -
Maybe you could do something clever with a routing protocol - BGP,
OSPF or RIP software running on the server might be able to provide
this funtionallity but I have never heard of anyone doing this.
This funtionality is available in any Server Load Balancing appliance
or software, so I would call it Server Load Balancing :-)
There is probably an Open Source / Linux solution out there that would
work?
James
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