Re: conditional routing

That's the standard way of doing things, AFAIK.
See what GSS systems do.

Just have a dedicated border at each site tracking the VIP (you have to
fix the local route for that) and advertise/withdraw based on that.

-Carlos

Fahad Khan @ 24/11/2014 07:39 -0300 dixit:
> Thanks Carlos for the reply.
>
> Actually I have a service running on two sites (Main and DR), Requirement
> is to keep the same IP for service. when the service is running from main
> site, the IP should be advertised from main site, while when the service is
> down at main site and it becomes available through DR site, the same IP
> should be advertised through DR..
>
> Muhammad Fahad Khan
> JNCIE-SP/SEC
> Lead Network and Security Consultant - IBM
> +92-301-8247638
> Skype: fahad-ibm
> http://pk.linkedin.com/in/muhammadfahadkhan
>
> On Mon, Nov 24, 2014 at 1:36 PM, Carlos G Mendioroz <tron_at_huapi.ba.ar>
> wrote:
>
>> I guess it's doable, but you would need an extra IP.
>> (At least that's what I would do)
>>
>> I would set this IP as a surrogate for "through site A" reachability.
>> Then tracking this IP (which would have a static route through site A) I
>> would change the route to the VIP to either through site A or through
>> site B, using EEM.
>>
>> But I wonder why do you want to do this and not use the standard way of
>> publishing the destination at the VIP site and following whatever route
>> you happen to get. Some more info on the topology and restrictions would
>> be needed.
>>
>> -Carlos
>>
>>
>> Fahad Khan @ 24/11/2014 07:04 -0300 dixit:
>>> Hi experts,
>>>
>>> Is it doable through IPSLA with the mixture of OSPF that I track a
>> service
>>> IP (kinda VIP) and route the /32 IP and /30 subnet , in case its
>> available,
>>> in case its not available I would route the same subnet or IP through
>> other
>>> site?
>>>
>>>
>>> Thanks in advance
>>> regards,
>>>
>>> Muhammad Fahad Khan
>>> 2x JNCIE-SP/SEC
>>> Lead Network and Security Consultant - IBM
>>> +92-301-8247638
>>> Skype: fahad-ibm
>>> http://pk.linkedin.com/in/muhammadfahadkhan
>>>
>>>
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>>>
>>
>> --
>> Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina
>>
>>
>> Blogs and organic groups at http://www.ccie.net
>>
>> _______________________________________________________________________
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>
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>
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-- 
Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
Blogs and organic groups at http://www.ccie.net