Re: Application issue over two ISP

The problem with the below solution is that it does not address the return
traffic problem nor the convergence time issues for the Internet. You would
also have to implement some type of natting solution, or script a route
policy change (assuming you're running BGP with your providers) to control
the inbound path from the Internet.

If the application is critical to business function you should consider some
type of direct PTP partner type connectivity. You can control path much
better, it will be more stable, and the failover times will be greatly
improved.

On 12/11/09, MDevarajan_at_inautix.co.in <MDevarajan_at_inautix.co.in> wrote:
>
> jack try this ...
>
>
> I feel we can implement cisco new protocol technology ( PFR) .. This
> protocol purposely developed for Application.
>
>
> Performance Routing (PfR) complements traditional routing technologies by
> using the intelligence of a Cisco IOS infrastructure to improve
> application performance and availability. This technology can select the
> best path for each application based upon advanced criteria such as,
> reachability, delay, loss, jitter, and Mean Opinion Score (MOS).
> Performance Routing can also improve application availability by
> dynamically routing around network problems like black-holes and brownouts
> that traditional IP routing may not detect. The intelligent load balancing
> capability of Performance Routing can optimize path selection based upon
> link utilization and/or circuit pricing.
>
>
> http://www.cisco.com/en/US/products/ps8787/products_ios_protocol_option_home.html
>
>
>
>
>
>
>
> jack daniels <jckdaniels12_at_gmail.com>
> Sent by: nobody_at_groupstudy.com
> 12/11/2009 09:53 AM
> Please respond to
> jack daniels <jckdaniels12_at_gmail.com>
>
>
> To
> Cisco certification <ccielab_at_groupstudy.com>
> cc
>
> Subject
> Application issue over two ISP
>
>
>
>
>
>
> Hi Guys,
>
> I have a scenario -
>
>
> CE -------ISP1
> |
> |
> |
> ISP2
>
>
> users behind CE connect to remote application ,
> Now issue is if ISP1 LINK or ISP1 goes down I have times less than 4 sec
> for application to go via other link so that users are not imacted.
> So can there be any solution for traffic to converge before 2 request
> timeouts , so that my application users are not impacted.
>
>
> Regards
>
>
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Received on Fri Dec 11 2009 - 10:22:36 ART