Re: OT Two internet Connection load balancing

From: Cisco Disco (itguy.pro@gmail.com)
Date: Thu Aug 14 2008 - 14:59:06 ART

Hi Felix,

Thanks for the info.

What type of equipment from cisco would be capable of doing this? Would
something like 2821s be capable of this?

Regards,

Haroon

On Wed, Aug 13, 2008 at 3:50 PM, Felix Nkansah <felixnkansah@gmail.com>wrote:

> Hi Darth,
>
> I dont know whether I get you right or not, but I would say any Cisco
> router
> with modern IOS should be able to do that.
>
> It's typically a combination of IP SLA, object tracking, policy NATing, and
> policy routing.
>
> You accomplish load-balancing by using PBR to send out different groups of
> sources out different internet links, while tracking the state of each link
> so you can failover onto another link which you specify to be secondary for
> that source group.
>
> The document below may prove useful
>
>
> http://www.cisco.com/en/US/tech/tk364/technologies_configuration_example09186a0080211f5c.shtml
>
> However, it's a very simple configuration example. It gets more complex if
> you have to do NAT on the router, in which case you need to use policy
> NATing.
>
> Let me know if this isnt very clear. I could get provide more details.
>
> In short, use IP SLA to keep uptime statistics on the links, Object
> Tracking
> to track the IP SLA objects, PBR to load balance traffic based on the
> source, and the 'next-hop verify-reachability' feature to help fail over to
> the other links if one goes off.
>
> Regards,
>
> Felix
>
>
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-- 
Haroon Mohammad
404-425-9301

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