[c-nsp] Re: Load balancing upload traffic

[A. Rahman Isnaini R Sutan]

^ Salam
^ A Rahman Isnaini R Sutan


----- Original Message ----- 
From: "Kim Onnel" <karim.adel at gmail.com>
To: "Cisco List 2 (E-mail)" <cisco-nsp at puck.nether.net>
Sent: Tuesday, January 17, 2006 5:16 PM
Subject: [c-nsp] Re: Load balancing upload traffic


> Would like to add that our internet gateway is a 7609 with IOS 12.2(18)SXD
>
> We receive the full routing-tableon one of them to give it to a customer, 
> so
> we changed its AD that its not installed in the routing table, but we give
> it to one customer of ours.
>
> Since we dont have much upload traffic, we had two default routes pointing
> to two links.
>
> Yesterday, one link failed, all upload traffic on that link were moved to
> the other one, which was too much for it.

Prepend some incoming prefixes for this link for instance.

>
> What are the methods of routing upload traffic to the other links in case
> one fails? any new IOS features ?
>
> One idea came to our mind, with no clue how feasible this is:
>
> Two default routes pointint to fake IPs
>
> 0.0.0.0/0 -> 1.1.1.1
> 0.0.0.0/0 -> 1.1.1.2
>
> Those fake IPs staticly routed to the two Interfaces
>
> 1.1.1.1 -> PoS1
> 1.1.1.2 -> PoS2
>
> And Also routed to the Third interfaces
>
> 1.1.1.1 -> PoS3
> 1.1.1.2 -> PoS3
>
> So that recursive routing would take place and traffic would move
> accordingly if interface fails.
>
>
>
>
> On 1/17/06, Kim Onnel <karim.adel at gmail.com> wrote:
>>
>> Hi,
>>
>> One gateway, three internet links terminated from our upstream, the full
>> routing-table on one of them.
>>
>> What are the methods of routing upload traffic to the other links in case
>> one fails?
>>
>> If we put 3 default routes, i dont know what the result of that would be
>> since the packets couldget re-ordered and assymetrical routing could 
>> happen.
>>
>> All your public/private suggestions welcomed
>>
>> Regards
>>
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