Re: BGP Multi-homing

Thanks all,

I guess I will go with Scott's advice on PBR. I have simulated this and it
seems to achieve just what I want.

Regards,
'Mayokun

On 7/7/09, Johnny Phan <johnny_d_phan_at_hotmail.com> wrote:
>
> Thanks for clarifying Scott.
>
> Basically I work for a Saas where they get have two ISPs, each with
> different commit cost and bursting cost. The basic idea is to have BGP be
> intelligent enough so it will use the commit of both circuits before
> bursting, incurring extra charge. So it is more sharing than balancing, but
> sharing intelligently. We are also an ISP passing on the full internet
> route, so it will be interesting to find out how taxing this feature will be
> on the router.
>
> Sorry, I didn't mean to steal the thread, but thought it might help.
>
> I look forward to your report Luan. Thanks.
>
> ----- Original Message ----- From: "Scott Morris" <smorris_at_ine.com>
> To: "Johnny Phan" <johnny_d_phan_at_hotmail.com>
> Cc: "olumayokun fowowe" <olumayokun_at_gmail.com>; "Cisco certification" <
> ccielab_at_groupstudy.com>
> Sent: Tuesday, July 07, 2009 1:57 PM
> Subject: Re: BGP Multi-homing
>
>
> I suppose that all depends on what your answer about "balance" versus
>> "share" is. Is 1:1 traffic-share actually a balance between the two?
>>
>> OER is about optimization not about balancing per se (unless you do
>> already) PfR is a theorhetical concept, but a nice one. But either
>> path you take, how well it operates depends on your definitions and
>> perceptions of the above two terms!
>>
>> I can give you two paths to go. How often to take either, or what you
>> take on either is a different story.
>>
>> Understand your options and build accordingly!
>>
>>
>>
>>
>> *Scott Morris*, CCIE/x4/ (R&S/ISP-Dial/Security/Service Provider) #4713,
>>
>> JNCIE-M #153, JNCIS-ER, CISSP, et al.
>>
>> JNCI-M, JNCI-ER
>>
>> evil_at_ine.com
>>
>>
>> Internetwork Expert, Inc.
>>
>> http://www.InternetworkExpert.com <http://www.internetworkexpert.com/>
>>
>> Toll Free: 877-224-8987
>>
>> Outside US: 775-826-4344
>>
>>
>> Knowledge is power.
>>
>> Power corrupts.
>>
>> Study hard and be Eeeeviiiil......
>>
>>
>>
>> Johnny Phan wrote:
>>
>>> I keep seeing the response as there's no way to load balance, only
>>> load sharing.
>>>
>>> Has anyone been able to use OER or PFR successfully ?
>>>
>>> ----- Original Message ----- From: "Scott Morris" <smorris_at_ine.com>
>>> To: "olumayokun fowowe" <olumayokun_at_gmail.com>
>>> Cc: "Cisco certification" <ccielab_at_groupstudy.com>
>>> Sent: Monday, July 06, 2009 8:38 AM
>>> Subject: Re: BGP Multi-homing
>>>
>>>
>>> For outbound, just use PBR. That way, one of your subnets (source) goes
>>>> to ISP1 and the other goes towards ISP2. Very simplistic.
>>>>
>>>>
>>>>
>>>>
>>>> *Scott Morris*, CCIE/x4/ (R&S/ISP-Dial/Security/Service Provider) #4713,
>>>>
>>>> JNCIE-M #153, JNCIS-ER, CISSP, et al.
>>>>
>>>> JNCI-M, JNCI-ER
>>>>
>>>> evil_at_ine.com
>>>>
>>>>
>>>> Internetwork Expert, Inc.
>>>>
>>>> http://www.InternetworkExpert.com <http://www.internetworkexpert.com/>
>>>>
>>>> Toll Free: 877-224-8987
>>>>
>>>> Outside US: 775-826-4344
>>>>
>>>>
>>>> Knowledge is power.
>>>>
>>>> Power corrupts.
>>>>
>>>> Study hard and be Eeeeviiiil......
>>>>
>>>>
>>>>
>>>> olumayokun fowowe wrote:
>>>>
>>>>> Hello all,
>>>>>
>>>>> I am multi-homing to the internet via two ISPs, and both of them are
>>>>> sending
>>>>> just default routes to me. I have two blocks of IPs that I am
>>>>> advertising to
>>>>> the internet. The challenge I am having is tweeking BGP so that
>>>>> traffic from
>>>>> a particular block use ISP1 while traffic from the other block of IP
>>>>> should
>>>>> use ISP2. I have been able to tweek inbound traffic from the
>>>>> internet but I
>>>>> am having issues with the outbound traffic because of the fact that
>>>>> Iam just
>>>>> receiving default routes from the providers. Does anyone have a
>>>>> solution for
>>>>> me?
>>>>>
>>>>> Thanks,
>>>>>
>>>>> Olumayokun
>>>>>
>>>>>
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Received on Thu Jul 09 2009 - 13:03:57 ART