Forum Discussion
nitass
Mar 17, 2011Employee
active/active LTM deployment on different subnet
Hi there,
I am thinking about active/active LTM deployment which each LTM is located on different data center and using different subnet. I mean not using GTM at all.
For example
data center A - subnet A
data center B - subnet B
I think if I create VIP on subnet C and D and then configure upstream router to route traffic of subnet C and D to appropriate data center e.g. dynamic route, static route, etc. If one of data center fails, upstream router will be notified and move traffic accordingly.
Is this possible? What do you think?
Has anyone used this configuration?
Thanks a lot!
Nitass
- There are a number of reasons why you wouldn't want to do this/wouldn't work.. but I'll touch on the most obvious.
- nitassEmployeeI might be wrong. Anyway, I think VIP will not be changed. For example, VIP C is hosted on data center A and VIP D is hosted on data center B. In normal condition, upstream router will route C subnet to data center A (physical subnet A) and D subnet to data center B (physical subnet B). However, if data center A fails, VIP C will be moved to data center B and upstream router has to be modified somehow to route C subnet to data center B.
- Michael_YatesNimbostratusThe high level answer to your question is Yes, but the devil is in the details.
- Remember in his first post he said no GTMs...
- nitassEmployeeThanks you both!
- I'm pretty sure we can safely say nobody is doing that ;)
- nitassEmployeeFeeling a bit good that I am the first one. :D
- Hmm it may not be something to be proud of ;) j/j
- nitassEmployeewell noted with many thanks!
- Sure thing bud.. You can never go wrong pushing for the best solution.. If they push back, make them formally accept the risk.. If it's documented, 1 you cover your butt.. 2 they think twice about the risk and the big picture..
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