MPLS VPN DC/DR

Unanswered Question
Jan 1st, 2009
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Hi,


In VPN n/w i have DC & DR. Both DC & DR r geographically separate. Server IP pool used both in DC & DR is different. Need to configure MPLS VPN in such way that when DC is active spoke should not able to access DR. when DC becomes unvailable spoke shoould able to access DR.


I m thinkin of conditional BGP. Let me know if you have any suggestion on conditional BGP or different solution.


Thanks...

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sachinshinde Sun, 01/04/2009 - 22:07
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Hi Jon,


Didnt get u.


In my scenario if DC & DR both have different IP pool then I in customer VRF (in MPLS VPN cloud) both IP pool will become available and spoke location can access both DC & DR simultaneously which I do not want.

I want client to only able to access DR if DC fails.

Giuseppe Larosa Mon, 01/05/2009 - 01:17
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Hello Sachin,

in your case what could help is BGP conditional advertising:

the PE routers (or the CE routers) of the DR site start to advertise the DR ip subnets when the DC subnets disappear from the VRF routing table.


see


http://www.cisco.com/en/US/docs/ios/12_1/iproute/configuration/guide/1cdbgp.html#wp1023602


Hope to help

Giuseppe



sachinshinde Wed, 01/28/2009 - 00:26
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Hi Giuseppe,


Can I use BGP conditional advertising feature in MP-IBGP instead of eBGP. i.e. if particular route present in end A PE router VRF then do not advertise alternate route to end B PE router something like this...


Mohamed Sobair Thu, 01/29/2009 - 13:27
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Pls post a detailed Network diagram..


HTH

Mohamed

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